Revealing mistake: In the beginning, when we see the sailor fall over the side of the boat onto the ice, watch the closeup first shot when he sits up - it's a (quite poor) green-screen shot with an image of icy water stuck in behind the actor. The ice has absolutely no sense of depth, the lighting on the background doesn't quite match the actor, and it doesn't match the following few wide-shots when the background is computer-generated.
Visible crew/equipment: When Torch is in the Black Forest, watching the crystal ball, 4 big light screens are reflected on it.
Continuity mistake: During the battle in London, when Mr. Fantastic is holding Invisible, her hair moves wildly. A shot later, her hair is suddenly trapped under his arm and just a few locks move, though mildly. (01:21:20)
Continuity mistake: When the Silver Surfer passes by Egypt, a man with a turban has an old woman on the left. When the shot changes she's standing behind him.
Continuity mistake: In the airport, the woman with the pony tail by Torch having pictures taken is either next to him or away with a group of girls, depending on the shot.
Audio problem: After the Surfer flies by the wedding, Johnny takes off flying after him and at one point says "Man he's fast" while his face is on camera. His lips never move while saying this.
Answer: That they are bitter rivals, the gung ho general didn't like the young know it all kid telling him what to do and what he was doing wrong.