Now You See Me
Apparently, Isla Fischer was in serious danger on the set of Now You See Me during the filming of a water trick. In the scene, Fisher’s character was submerged in a tank of water, chained to the frame. Her quick-release magnetic chains had cuffs that were designed to release automatically. However, “the chain that went between my legs couldn’t be broken, and it got stuck.”
After thinking that Fischer was just doing some fabulous acting at first, they finally realized she was in danger and quickly jumped to her rescue.