Other mistake: When Joan is cutting up her rose garden, she is ranting and raving about how mad she is at Mayer, and how they're calling her box office poison. But if you look closely at her lips, they aren't moving.
Other mistake: When attacking the convoy, the crew rushes forward during the crash dive. Just after a crew member jumps through the hatch after the bow crew compartment, you see someone standing still a second before getting pushed in the view of the camera. (01:31:15)
Other mistake: Toward the end of the film, Cora and Frank put the top up on their roadster, then drive off without latching the top.
Other mistake: There's no way Harry could've smashed the cigarette vending machine at the gas station without somebody inside seeing him.
Other mistake: In the scene where Mel Gibson is playing AFL with his fellow soldiers during training in Cairo, we see him wearing a digital wrist watch when he whistles and raises his arm. (00:49:30)
Other mistake: When Arthur and all his knights assemble on hilltop at night and Merlin tells them all not to forget where the Round Table started, you can see the crew's spotlights reflected on the back of some of the knights' armour.
Other mistake: He says his father won the sculling 1928 Olympics, which doesn't match up with their ages.
Other mistake: When Ned Racine goes to see Teddy Lewis about making a bomb, Teddy turns down the music by adjusting a unit (possibly a radio) on his workbench. Near the end of the scene, Teddy climbs up on his loft bed and, after saying his last line, reaches out of frame and turns down the radio. There's no way he could have reached the workbench from that distance. Most likely the editor used Teddy's gesture to motivate his turning down the music. And it works.
Other mistake: During the ending credits, Steadicam is misspelled as Stedicam.