According to sources on the set of the spy thriller 'Salt', the last-minute changes - requested by Jolie - were in case she got pregnant mid-shoot.
The changes have made the film more of a cat-and-mouse thriller than the all-action extravaganza it was originally written as, the sources said.
"There is still some exciting action stuff - most notably a scene where Angie's character is chased by snipers over rooftops," the Mirror quoted a source, as saying.
"But there's no back-flips on speeding trains, and it's all more face close-ups rather than action sequences.
"Earlier versions of Salt could not be shot with a woman in the early stages of a pregnancy. But the draft they're now shooting can," the source added.