Revealing mistake: During the fight in the apartment, the girl in the shower is wearing a black thong. (01:44:00)
Revealing mistake: When the baby fires the big jet of pee it comes out of somewhere next to his knee instead of his groin. Obviously where some sort of hose was placed.
Revealing mistake: When DJ gets arrested, handcuffed and put in a police car, it's shown that he's actually holding his own cuffs.
Revealing mistake: In the shots of the Washington Probe office, when Heather sees Nick talking to the press about his affair with her, the newspaper staff are working on computers that (except for one) have no cables connected to them. (01:14:35)
Revealing mistake: When Abbey grabs the knife and threatens David, David falls and hits the tea party table, sending the tea set onto the floor. As Elizabeth crosses to be next to David, her foot hits a pink tea cup piece on the floor sending it rolling away behind her. As a ghost her foot should have just passed through the object. (01:06:45)
Revealing mistake: When Walter, Danny and the astronaut are in the kitchen breaking stuff to burn, the smaller boy tries to smash an old style broom on the table. He tries three times, on his final try the shank breaks in half, revealing where it had been sawn nearly all the way through in nice clean line, with only a splintery piece showing where it really snapped.
Revealing mistake: In the beginning of the movie, at the scene in the morgue, dead David's eyelids very slightly shake right before his casket is closed. (00:04:20)
Revealing mistake: In the first person shooter sequence, when Reaper gets the chainsaw, there are many parts where he is moving it around near Pinky, now the beast thing, and it does not have a shadow, and at other times when it is at the same angle, it does.
Revealing mistake: When Capt Knauer aims the gun at Crewe after the game it shows the barrel with a plug and a hole too small for an actual bullet to come out of.