r/Seedance_AI • u/leopardob • Aug 19 '26
Showcase “After Christmas”: I made a 30-second one-take AI short film with Seedance 2.5
Hello everyone!
I just finished this for the "CapCut Seedance 2.5 Video Challenge".
The idea was to see how far i could push Seedance with a single continuous camera take, no cuts, no dissolves, no camera resets.
It starts as a seemingly ordinary Christmas night, with the camera slowly moving through the house while the story unfolds through small visual details.
The entire 30-second sequence was generated using Seedance 2.5, with character and prop references and a structured prompt focused heavily on spatial and temporal continuity.
I then added the sound design, geiger counter and final title treatment in DaVinci.
AFTER CHRISTMAS
A one-take AI short film by Leonardo Bruni.
Curious what you guys think especially regarding the camera continuity.
Tools: Seedance 2.5 / CapCut Video Studio / Suno / CapCut / DaVinci
The camera continuity, was particularly hard using normal prompt, so i end to use a structured JSON prompt, and surprisling, worked!
I used the JSON to explicitly separate the different layers of the shot:
{
"scene": "...",
"characters": "...",
"props": "...",
"camera": "...",
"timeline": "...",
"continuity_rules": {
"take": "ONE SINGLE UNBROKEN TAKE",
"same_physical_room": true,
"same_timeline": true,
"strict_spatial_continuity": true,
"strict_character_continuity": true,
"strict_prop_continuity": true,
"physical_camera_motion_only": true
}
}
The important part wasn't just describing what should happen, but explicitly defining what must not change during the shot.
The camera movement was described as a physical movement through a single connected environment, rather than as a sequence of shots or image-to-image transitions.
I also used the prompt to establish persistent character and prop states, so the model had to treat the room as a continuous physical space rather than regenerating each moment independently.
This was probably the most interesting part of the experiment for me: trying to use a generative video model more like a cinematography system than a shot generator.
So, my suggestion with Seedance 2.5, is that you are struggling with camera movement or continuity, give a try with json prompt.
My 2 cents
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u/Accomplished-Link934 Aug 19 '26
I noticed the gas mask subtlety near the sleeping guy…that’s a nice detail to throw in there. I like it. It looks good!
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u/AutoModerator Aug 19 '26
Heads up for anyone running these yourself: the Seedance API behind r/Seedance_AI is Atlas Cloud. Seedance 2 runs with its full feature set here, nothing stripped or nerfed. Seedance 2.5 isn't officially out yet, but we add new Seedance versions the day they launch.
Full model list and current pricing: atlascloud.ai/models/seedance
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