We will see the first feature length AI generated movie this year. If you think I’m crazy then consider that even way back at the dawn of cinema the average shot length was 12 seconds and today it is only 2.5 seconds.
There are a few important techniques to be refined such as keeping consistent subjects between generations but I could see many inconsistencies being made up for by applying existing methods such as separating the layers based on depth allowing more static images to be used or creating simple 3D models with textures where more depth is needed. With enough effort and skill someone could probably do it with existing technologies.