Continuity: The first time we see Tom Jones' backup dancers, they are about three feet apart. In the next shot, they are directly next to each other.

Continuity: When Sarah Jessica Parker is talking to Pierce Brosnan on her show, her dog suddenly ends up in her lap. While she is talking her dog is beside her sleeping, when the camera cuts to another angle the dog is suddenly wide awake and sitting on her lap.

Continuity: Jason Stone stands a knife in his food as he passes the phone to his wife at the breakfast table. The knife disappears in the next shot, but reappears in every closeup on Jason.

Continuity: At the beginning when the President is deciding to go public to the American people, Jerry moves his arms into his lap twice.

Continuity: When the Martians are attacking the people in Nevada, the truck which Natalie is on falls to the ground, but when Jason runs to save her it's back on its wheels.

Continuity: When the two boys finds the dead Martian in their bedroom at the end of the film, there's that green stuff on his brain but in the next shot, when they push the Martian and he falls into the street, the brain is clean.

Revealing: When the Nancy Reagan chandelier fall on the first lady, it is obviously a dummy with a wig.

Continuity: When Byron, Barbara and the others are going to escape from the casino, the Martians break a wall behind them. The hole is different in the following shots.

Continuity: When Byron's ex-wife is driving the bus, she sees her two sons playing at the arcade, when the bus passes right in front of the building. She makes an announcement to the passengers, then she brakes, but the bus stops right in front of the arcade.