Judy Garland couldn't stop giggling in this scene where she had to slap the Cowardly Lion. The director eventually took her aside and slapped her, then she nailed it in one take. You can see her giggling in this gif. Looks like she's trying to rein it in. But she just couldn't. She finished the scene in one take after getting slapped. Times were certainly different back then. Do you think anyone's ever slapped Jennifer Lawrence on set? sounds like an effective way to combat the giggles.