The holes that Karen shoots in the trunk of the car have disappeared by the time she gets out.
Karen's Dad gives her a gun as a birthday present about a week before the Super Bowl which is usually in late January or early February. Yet when Buddy checks her driver's license that night, her date of birth is listed as April.
In the hotel room, when Jack and Karen are together, the bed sheets go from green to white to green again.
While Karen is at Moselle's house, during her "tussle" with Kenneth, he grabs the side of his face in pain before she hits him.
Seconds before the car crash the windows of the sedan are rolled down halfway. When it collides with the barrels, Karen thumps her head on a fully closed window.
If Karen Sisco had fired a gun in the enclosed volume of a car trunk, she probably would have blown out her ear drums.
The supposedly uncut diamonds sparkle and look like already-cut diamonds.
Snoopy asks Glenn to choose between "the Glock or the.45". While technically questionable, since Glock makes a.45, it conforms to common usage of "Glock" to refer to a Glock 9mm and would be unambiguous to everyone but a Glock specialist.
When Chino is breaking into Adele's apartment first he tries the doorknob which is locked. He then breaks the glass and reaches through and unlatches the chain lock only and never touches the main lock yet he is then able to open the door. Then, when they leave, miraculously, the glass is back in place.
After the shootout in Ripley's house, when Foley is talking to "the maid" in the bedroom, Kenneth, who has just been shot dead, clearly moves under the bedspread. Twice.
When they drive the van the "snow" on the ground behaves like it is made of some mushy foam.
When the cars turn in at the mansion towards the end of the movie the snow appears to be foam. Also when they step out of the vehicles outside the mansion the snow is obviously foam.
In the car crash with Glenn Michaels and Karen Sisco, they claim to be getting off on an Okeechobee exit; however, there aren't any bridges, like the two in the background, by any of the Okeechobee exits on any of the Florida highways.