Reese Witherspoon's son took his famous mum's role in MONSTERS VS. ALIENS a bit too literally - the five-year-old is now convinced extra-terrestrials really exist.
The 33-year-old, who voices a giant woman in the film, made sure she took son Deacon and daughter Ava, nine, to see the animated epic ahead of its release.
But when Witherspoon quizzed the pair about the meaning behind the movie, she realised she'd have a bit more explaining to do than she first thought.
The star says, "My kids love this movie. I asked them what they thought the movie meant, what they thought the message was.
"My daughter said, 'You should never let anybody under-estimate you', and I was like, 'Yeah, that's true!' Then I asked my son and he said, 'If octopus aliens invade our planet you have to kill them'."