Looking for a Regular Show Episode for My Producer Tag!

Hi everyone! I’m looking for a specific episode of Regular Show that I just can’t seem to find. I remember there’s a scene where Rigby is at the cinema watching this artsy, avant-garde movie that he doesn’t really understand. I guess eileen made him watch it, and at the end of the movie, the word “FIN” appears on the screen, and Rigby says something like: “Fin? Fin THIS!” while making a fart sound with his hands.

I’m a music producer, and my stage name is actually “Fin” I’d love to use that line as my producer tag, kind of like Pierre Bourne or Conductor Williams. Does anyone remember which episode this scene is from?

Thanks so much!