Sick Bag full.
Malcome McDowell was airsick for most of the time he was up in the choppers, pretending to fly them. A lot of his sequances had to be reshot.
He was espicially horified when the chopper flew under the catwalk at the end.
After shooting had finished his wife said to the director "I don't know how You got him to go up in the helicopters! I can't even get him on a 747!
Also there was a helicopter crash while filming, but the chopper managed to auto rotate down.