I was thinking a movie about an actor's decline as he joins a cult not unlike scientology that breaks him down slowly until an embarrassing rock bottom moment and jumps into obscurity. (think Requiem for a dream but what Scientology does to a person instead of hard drugs)

Or a movie about actors that pull off a hoax that inadvertently changes the entire world, either a harmless cherade done only to get them in the spotlight but instead spirals out of their control. (Like maybe in the style of the Deep Space 9 episode "In The Pale Moonlight")

Maybe I'm cynical but I am not even sure what happened with that other than a slap as I'm not into the Oscars or celebrity drama