Cate Blanchett is a truly unique actress. She found out about her first pregnancy after she was offered the role in Charlotte Gray, she found out about her second pregnancy during her work on The Life Aquatic with Steve Zissou, and she found out that her third child was coming when she was on the set of Indiana Jones and the Kingdom of the Crystal Skull, where she finally got to play a villain.
This dedicated movie star managed to handle all of her difficult stunts and never ended up needing a stunt double.