I think they ripped off part of this movie from the King of Comedy

The part where he films billie jean reminded me of the part in the other movie, because in both films they show the beginning of the part being filmed and they show the rest when some other people are watching it.

That was the only halfway decent part of film making in Billie Jean.

The reason why I think this was ripped off is because I don't think the filmmakers that made billie jean were talented enough or smart enough to come up with that by themselves, judging from the rest of the film.