Continuity mistake: In the end of the movie, Hilts (Steve McQueen) is returned to the camp - he is dirty and his shirt is torn. When he enters the cooler, after being tossed his baseball glove, he is clean and his shirt is no longer torn. (02:49:50)
Other mistake: After there has been the vote for chief, behind one boy you can see a piece of wood reading "Anthony M," a marker for showing where the actor (Anthony McCall-Judson) should sit. (00:13:25)
Continuity mistake: When JB is driving the truck and is being bombed with grenades from the helicopter, the truck gets smoke blackened. But when he arrives at the speedboat, all the smoke marks have gone.
Continuity mistake: Before Kay cuts the mop's handle, the mop is dark brown. After he cuts it turns to vanilla coloured.
Continuity mistake: When Melville is launched from the ladder and down through the stairs in the apartment building, he is shown landing in a gap between the stairs. In the first shot, he is shown putting his hand on the bottom step of the stairs. A closer shot of Melville is then shown where his hand is now placed on the second step. (02:36:08)
Revealing mistake: When the arrow hits Medea and Jason pulls it away from her back, she crouches and the prop pad where it was stuck protrudes.
Revealing mistake: After a carriage rolls over Midshipman Poop-Decker's sword, he can be seen pushing some kind of trigger with his thumb to make the sword split in two. (00:05:05)