FilmTogether: Cinematic Video Generation from Low-Cost Inputs

Shiying Zhang, Xiaobin Hu, Qianchi Zhang, Jiaqi Zhao, Xiaoda Yang +2

The widespread adoption of mobile devices has democratized video recording, but a stark aesthetic divide persists between casual, low-cost captures and high-cost cinematic productions. Bridging this gap requires upgrading heterogeneous production elements, such as lighting, specialized costumes, and materials, without altering the core layout, identity, and temporal motion of the original footage. However, this task is heavily bottlenecked by two important challenges: 1) Lacking a high-quality paired training data specifically designed to handle complex low-to-high appearance shifts. 2) Ignoring the capacity of current video editing models to perceive and enhance the multiple low-cost compositions. To address these issues, we present CineCraft-120K, a large-scale dataset of aligned low- and high-cost video pairs annotated with pair-aware editing prompts. CineCraft-120K features a diverse, high-resolution and high-cost Cinematic Crafting bank spanning decades of media production, meticulously taxonomized into 5 broad domains and 23 fine-grained sub-categories. It also provides element-level mapping between low- and high-cost counterparts, offering pair-aware rich textual prompts…