Continuity mistake: During the long wedding scene, while Michael watches Linda on the dance floor, the level of the beer in his glass goes up and down several times.
Continuity mistake: When Captain Drazak arrives at the camp carrying the bodies of the bandaged men, he passes in front of the child. The child makes fun with his right hand, but in the next shot, from behind, the child uses his left hand.
Continuity mistake: Richard Burton parachutes from the Hercules twice. He shakes hands with Richard Harris before being the first pair to jump. Approximately 5 seconds later, we see him jump again.