Plot hole: When Marion is being carried in the basket, being chased by Indy, he is hot on their heels the entire time. She's placed on the truck with the ammunition, only to explode when it topples over while trying to get away. Marion's dead. Later, he finds her in Belloq's tent very much alive. Indy concludes they must have switched baskets. When did her abductors have the opportunity to do that, and why would the Germans be in a hot hurry to get the truck out of there if the basket was empty?
Suggested correction: He concludes they switched baskets, but they didn't. He's not in hot pursuit either because he has to retreat and hide behind a wall from the machine gun once he gets to the truck. They put the basket with Marion inside the truck but simply got it out before it started driving. Indy could have never seen that and there is no basket in the truck that explodes. They wanted it out of there because it is full of explosives and possibly as a diversion for where they were really taking Marion.
