Visible crew/equipment: Just after our two heroes have been fired from Big Edna's, a black Porsche crosses the screen treating us to a perfect reflection of the sound man, complete with boom and Sennheiser microphone. Really, it's that clear.
UHF (1989) - 2 with pictures
starring Al Yankovic, Fran Drescher, Kevin McCarthy, Michael Richards
Screenshots of mistakes that have been online for less than a year are only visible to members, but the rest are available to everyone. Don't forget to check out the picture of the day, updated daily, and the top 30 screenshots too.
Continuity: As Philo sets up his camera in Fletcher's office, he has a pencil in his mouth. In a subsequent shot, the pencil is gone. He did not remove the pencil as he was working on the camera the entire time. (This is even mentioned in the DVD commentary.).
You may also like: Star Wars | Jurassic Park | Dodgeball: A True Underdog Story | The Incredibles | Terminator 2: Judgment Day