Disclosure Day, Steven Spielberg’s latest sci-fi thriller, concludes with an alien delivering a mysterious message that the film intentionally withholds from viewers.

Taking that into account, it's hard to imagine him being thrown off of a movie set, but that's precisely what happened when he tried to drop in on an Alfred Hitchcock thriller during its production.

"The mission's clearly over for me," he says of his character's exhausted defeat at the end of the film.