This workshop aims to advance the state-of-the-art in long multi-scene video modelling, covering generation, understanding, evaluation, and ethical considerations. Long videos offer a powerful means of expression and communication, with applications in diverse fields such as entertainment, education, and health. However, current video generation and understanding techniques are typically confined to short, single-scene videos, limiting both our ability to create and comprehend complex video narratives. Thus, a growing need and research area is the development of methods for generating and understanding long-form videos of multiple dynamic scenes.