The small packet in Hannibal's hand is much larger than the packet Murdock pulled out of his mouth.
When they were making the squibs out of the nail polish, the nail polish was pouring out like water. In reality nail polish is very think and would not pour out that easy.
The "US" air strip where the team's DC3 takes off is the same location as the "Mexican" air strip where they land. Only the camera positions change from one side of the strip to the other.
Shot of red Jeep emerging out of the bushes was used twice.