Create a 15-second, live-action, cinematic time-travel short film. The story unfolds between a modern rainy night and the bustling night market of Tang Dynasty Chang’an, with an overall cinematic quality—authentic sets, natural lighting, finely rendered skin textures, and believable physical inertia. Before the jump, the scene feels cold, empty, and hurried; after, it transforms into warmth, vibrancy, and life, creating a stark contrast. Camera movements are smooth, character actions flow seamlessly from one moment to the next, and no exaggerated special effects are used for the transition.
**Character Details**
The protagonist is a young East Asian woman in her early twenties, approximately 168 cm tall, with a slender yet well-proportioned figure, natural head-to-body proportions, an oval face, fair and natural skin tone, deep brown almond-shaped eyes, a delicate nose, pale pink lips, and long black hair. Her demeanor is graceful and lively, with a restrained yet authentic performance style. Prior to the time travel, she sports a slightly disheveled, loose high ponytail, wearing a light gray cropped hooded jacket, a white T-shirt, a black pleated skirt, white sneakers, carrying a cream-colored canvas bag, and sporting white wireless earbuds, while clutching an unbranded black smartphone in her right hand.
For the time travel sequence, she must remain the same person—her face, skin tone, age, height, shoulder width, waist circumference, limb lengths, and body proportions all stay unchanged. Only her hairstyle, makeup, and clothing will shift. Her hair transforms into an elegant yet understated Tang‑era double-loop “Wangxian” updo, adorned with delicate golden flower ornaments and pearl hair pendants, complemented by a faint red flower decoration between her brows. Her makeup remains light and natural. Her outfit evolves into a qixiong ruqun featuring a gradient of pale cyan and rouge pink, with subtle dark patterns along the neckline and skirt waist, draped over with a sheer crimson shawl, and finished off with lightly embroidered shoes. The canvas bag and earbuds vanish during the transition, while the smartphone stays firmly in her right hand as a subtle clue to her modern identity. The skirt hem, shawl, hair ornaments, and strands of hair exhibit realistic weight, responding naturally to movement—swaying with running, sudden stops, and turns.
**0–3 Seconds: Catching the Last Subway**
A modern city on a rainy night, at the station for the last subway train. Silver-gray walls, cool white fluorescent lights, a damp platform, and a closed train create a clean, minimalist depth. In the distance, only a few indistinct passengers can be seen, lending the scene an air of quiet restraint. As the closing bell rings, the girl glances down at her phone’s time, her pupils constricting slightly and her brow furrowing before she looks up and sprints toward the closing doors. Her breathing is quick but not exaggerated; her left hand presses against the swaying canvas bag, while her right grips the phone tightly.
The camera uses a 28mm wide-angle lens, tracking rapidly backward from just below waist level on the girl’s side, initially maintaining a full-body shot before slowly zooming in to medium range. Her footsteps, ponytail, coat hem, and bag swing naturally with each stride; the cold white lights streak past in the background, adding a sense of speed. The shot remains steady yet carries a subtle, lifelike rhythm, without harsh shaking.
**3–5 Seconds: Door Blocking the Time Jump**
As the train doors begin to close, the girl sidesteps into the gap, stepping in with her right foot first, then drawing in her shoulders and pivoting her hips, her canvas bag brushing against the door frame. The camera closely follows her forward motion, capturing the black edge of the door sweeping across the frame from right to left, completely obscuring the lens for about 0.4 seconds—a seamless blackout effect.
This transition must rely entirely on the door frame to achieve a seamless shift between eras: before and after the blackout, the character maintains the same direction of movement, stride length, body tilt, arm position, and facial orientation. No distortion or deformation of clothing should be visible. During the blackout, only subtle low-frequency vibrations, brief warm-colored light leaks, and natural exposure changes are introduced—no portals, beams of light, or particles appear. Sound transitions gradually from subway alarms and mechanical train noises to the clatter of hooves, bronze bells, rolling wheels, and distant market sounds.
**5–8 Seconds: Bursting Into Tang Dynasty Chang’an**
With the door frame fading from view, the girl continues moving forward with the same momentum—but now fully transformed into Tang‑era attire, bursting into the vibrant night market of Chang’an. The cool white subway lights gently give way to warm lanterns and candlelight spilling from shopfronts. She notices the change beneath her feet, abruptly halts, leaning forward slightly as her right foot lands, followed by a quick step with her left to regain balance. Her wide skirt and flowing shawl continue to billow forward despite the sudden stop. She nearly collides with two ladies holding lanterns; startled at first, they instinctively step aside, their reactions natural and unhurried, without any exaggerated screams.
The camera maintains the previous pace, retreating half a step, then smoothly rising to chest height to reveal a medium‑to‑long shot of Chang’an’s streets: cobblestone paths, neatly arranged wooden shops, silk stores, teahouses, lanterns, fabric banners, slow-moving carriages, and a handful of Tang‑era pedestrians chatting or selecting goods. About 10 to 14 figures populate the medium‑to‑long shot, clearly layered across foreground, midground, and background, their clothing muted in color and their movements deliberate and orderly. Lanterns, silk fabrics, carriages, and warm shop lighting evoke the splendor of the Tang era, avoiding overcrowding or excessive ornamentation. The protagonist remains at the visual center of the frame, distinctly separated from the backdrop.
**8–11 Seconds: Confirming the Transition**
A sleek horse with simple saddle gear passes by about two meters ahead of the girl, its pace brisk but not threatening. Startled, she instinctively steps back half a step, raising her hand to shield her chest, her eyes widening and her breath catching momentarily. The camera swings rapidly alongside the horse, tilting about 20 degrees, before settling back into a tight close-up of the girl’s upper body, the lantern-lit background softening into a gentle golden haze.
She lowers her gaze to inspect her Tang‑era outfit, briefly touching her skirt waist and shawl with her left hand, then reaching toward her ear to search for her now‑missing earbuds. She lifts her head again, scanning the ancient street, her expression shifting through alertness, confusion, and disbelief, her lips slightly parted but not screaming. The camera slowly pushes in to capture her eyes and breathing, preserving every nuanced micro‑expression with remarkable subtlety.
**11–13 Seconds: A Mysterious Young Man**
Shaken, the girl releases her grip, and the phone slips from her right hand. A male hand catches it mid‑fall, about 20 centimeters above the ground. The camera tracks the phone swiftly downward, then smoothly pans upward along the arm that has grasped it, revealing a young man in his mid‑twenties, dressed in Tang‑era fashion. He stands roughly 183 cm tall, with a straight, upright posture, his black hair tied back, wearing a simple gold crown, sharp, calm eyes, and a dark blue round‑necked robe with subtle patterns, paired with a black belt and leather boots.
The young man first studies the unfamiliar black smartphone, his brow slightly furrowed, his eyes filled with both caution and curiosity, before meeting the girl’s gaze. She nervously extends her right hand to reclaim the phone, her body remaining alert, the two keeping a half‑step distance between them.
**13–15 Seconds: The Climax of Suspense**
The phone screen flickers to life, displaying only a clear “no service” icon and a low‑battery warning—no complex text appears. In the distance, patrolling soldiers notice the girl’s unusual attire and strange object, blowing their whistles suddenly. The young man’s expression instantly hardens; he slides the phone back into her hand, then takes her wrist and turns to run. The girl is pulled forward by his momentum, her shawl, skirt, and hair ornaments swaying naturally with the acceleration, as she turns around in surprise to watch the patrolling soldiers.
The camera begins with a medium‑shot following the pair as they start moving, then quickly pulls in for a tight close‑up of the girl’s face. Her eyes convey a mix of panic, confusion, and primal survival instincts. The lantern‑lit background dissolves into golden specks, while the patrolling soldiers retain only their distant silhouettes, never stealing the spotlight. Just as the two are about to exit the frame, the scene cuts sharply to black, leaving behind the unfinished act of fleeing.
**Music and Sound Design**
From 0–3 seconds, restrained modern electronic bass, subway alarms, footsteps, rapid breathing, and train machinery set the tone. From 3–5 seconds, electronic bass blends naturally with Tang‑era drumbeats, accompanied by faint tinnitus and a single low‑frequency vibration. Once in Chang’an, the score incorporates short phrases of pipa music, deep drum beats, and contemporary cinematic strings, gradually building in intensity without becoming overwhelming. Background sounds include the clatter of hooves, bronze bells, rolling wheels, distant merchants’ calls, and the rustle of fabrics. When the phone slips from her hand at 11 seconds, the music pauses briefly; upon hearing the whistle at 13 seconds, the drumbeat accelerates; and when the scene cuts to black at 15 seconds, the music abruptly stops, leaving only the sound of running footsteps, breathing, and the wind slicing through the shawl.
**Negative Requirements**
Do not alter the protagonist’s face, age, skin tone, height, body shape, or head‑to‑body proportions. Do not swap faces, introduce facial flickering, cause clothing to jump, distort hairstyles, warp features, deform limbs, or add superfluous appendages. Avoid teleportation, sliding on the ground, broken movements, or clothing penetration. No magic circles, time tunnels, lightning bolts, colorful particles, bright beams of light, smoke explosions, cheap dissolving effects, or spinning transformations. Do not mix modern and Tang‑era objects. Avoid crowded backgrounds, overly dense lanterns, chaotic shops, or scenes where crowds steal the spotlight. Refrain from exaggerated expressions, comedic falls, excessive slow motion, violent shaking, frequent flash cuts, subtitles, watermarks, brand logos, or garbled text.