It would have been perfect for Punk'd or Candid Camera.
At last night's American Cinematheque tribute to McConaughey, Hathaway said the two became friends while filming the upcoming Interstellar.
"I have a story and it's kind of embarrassing," the Les Misérables actress said.
It sure is.
McConaughey invited Hathaway and her husband Adam Shulman to his L.A.-area home for a party.