Weekend at Bernie's (1989)

Continuity mistake: Right before Richard discovers that Bernie is dead and Larry is talking about drugs becoming a career, "I watch the news. I read." There is a side/back view of Larry talking and neither his gestures or his mouth line up with what he is saying.

Continuity mistake: Bernie's facial expression changes from the smile on his face when he first get injected with drugs to a smirk throughout the movie, to no expresssion and back again.

Continuity mistake: When Richard and Gwen are kissing on the beach, a big wave pushes Bernie alongside them and you can see them getting wet from the wave but in the very next scene of them walking back to the house, they are dry.

Trivia: Bernie's two story house was built specifically for this movie at a state park in North Carolina, but was torn down right after filming, as per the agreement before filming.