Godfather III - good version

Godfather III - good version is one of the illegal videos in Comic Book Guy's stash in the basement of the Android's Dungeon & Baseball Card Shop.

History
Bart and Milhouse found the video, along with many others, when they were managing the store during Comic Book Guy's absence and accidentally discovered the entrance to the basement.

Behind the Laughter
The movie's title is a reference to  getting relatively lukewarm reviews compared to the first two films of the Godfather trilogy.