Angry Video Game Nerd: The Movie (2014)

Revealing mistake: About seven minutes in, during the scene where we see Cooper helping the Nerd as a cameraman, you can tell that Cooper has been added to the scene using green-screen effects, as the actor was unavailable to shoot at the location. The lighting on Cooper doesn't quite match the lighting of the scene, and you can see a slight "blur/feathering effect" around him where the greenscreen background was removed.

General Dark Onward: Where did all these fucking boxes come from?

Trivia: The film (a spin-off James Rolfe's video-game review series "The Angry Video Game Nerd") was partially inspired by Rolfe constantly being asked to review the infamous Atari-2600 game "E.T.- The Extra Terrestrial." However, due to legal copyright issues, the game had to be altered somewhat to be featured in the film. Rolfe decided to humorously re title the game "Eee Tee" in this film, and make small cosmetic changes to the graphics (such as giving "Eee Tee" a moustache) to make it able to be legally included.