Wondering how Johnny Depp manages to stay forever young? A puerile sense of humor might play a part in the beloved actor's sense of agelessness.

Depp's Pirates of the Caribbean: On Stranger Tides co-star Penelope Cruz visited Jimmy Kimmel Live this week, where she recounted one of Depp's on-set antics. "He fooled me once when we were doing Blow," Cruz said. "I was doing a very dramatic close-up, and he kept making [a farting noise] with the [fart] machine."