Imagine you’re asked to appear as an extra in a new movie. Also imagine you’re told just a handful of things about the movie: That it’s set in the seventies, that it stars Burt Reynolds, and that you just need to clap a lot during some sort of awards show scene.

Now imagine that movie ends up being ‘Boogie Nights.’ Sounds cool, right? Well ...

That’s exactly what happened to a pack of gobsmacked extras during the filming of Paul Thomas Anderson’s 1997 feature film. Star William H. Macy hit ‘Late Night’ last night to talk about these particular extras with host Seth Meyers, revealing exactly what happened to offend them during the course of filming, to the point that some of them walked out. We bet they’re kicking themselves now.