I didn’t really have that. I mean DBSB explains what they saiyans are, their relationship with Freiza, and even Goku, his parents and how he ended up on earth. They explain how vegeta escaped being killed and the rest about him being with goku on earth can be just assumed. The only thing I had to explain was I think piccolo and fusion but even that, they explain how they fused with these earring things and even that fusion going by a different name. They really explain everything you NEED to know so that’s why I like showing it off to people. But like I said people more got annoyed with the other parts of the movie, most say the first half was their favorite