Continuity mistake: During rehearsal when Artemis agrees the song shouldn't be cut, her hand is on Charlie's shoulder. When the camera cuts, she's standing away from him with her arms to her side.
It's Always Sunny in Philadelphia (2005)
1 mistake in The Nightman Cometh
Starring: Danny DeVito, Charlie Day, Glenn Howerton, Kaitlin Olson, Rob McElhenney
Genres: Comedy
Charlie Kelly: Cat in the wall, eh? Okay, now you're talkin' my language! I know that game.
Trivia: According to the show's assistant prop manager, there were around 100 "poos" created for this episodes, many of which were made from different materials, including a food thickening agent, sheetrock mud and a cookie dough mixture.
Bums: Making a Mess All Over the City - S3-E14
Question: Does the junkyard cat actually belong to one of the actors or is that a whole different deal?