Indiana Jones and the Last Crusade
Indy had a difficult time seeing through the lovely Nazi spy in Indiana Jones and the Last Crusade. Henry Jones, played by Sean Connery, had been trying to convince his son of the truth the whole time. When Indy finally realizes it, he asks how his father could tell. Off the cuff, Sean Connery told the titular character, “She talks in her sleep.”

Indiana Jones And The Last Crusade
Thor: The Dark World
Let’s just say the title character made a great entrance in Thor: The Dark World. Apparently, the script did not have him hanging the Warhammer on a coat hook. He simply came up with it and everyone loved it! They didn’t use the first take, however, as they chose to redo the scene.

Thor: The Dark World