A Colt revolver like the one Julie uses to shoot Ben Willis in the climax only holds six shots. Julie fires eight times.

After Ray's accident, he walks down the street his left arm is in the sling, and afterwards, every other shot shows his right arm in the sling. (this is probably due to the film being "flipped" to look better).

When Julie offers Ray to the Bahama's, and Ray hang's up, his friend Jay knows that she invited him to the Bahama's, without listening or anyone telling him.