So far the only thing anyone knows about the story is that it is some time after the Buu saga..probably like a year or so. In one of the trailers Goku was "sayin" (lol had to) that he was itching for a fight since the last one so if that is true it will in fact be canon since none of the other movies ever mentioned any of their previous fights. The bunny/egyptian inspired purple guy is thought to be the lesser of the two and kind of like Buu was to Babidi, but if the other guy..yes it is a guy..has any fighting skills is anyones guess.
Edit: One more thing,
TRUE Dragonball fans know of this..which is a very very small percentage. The
REAL live action Dragonball movie..yup..also hard as hell to find and really shocked to find the whole thing o youtube..but enjoy!
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