One of the characters that Tom Hanks plays in the upcoming Cloud Atlas has a Cockney accents and swears all the time. Promoting the movie on Good Morning America—a show which allows Cockney accents but not swearing—Hanks was asked to reprise the character. Unfortunately for host Elizabeth Vargas, Hanks was unable to think of any non-swear words to say and ended up dropping the F-bomb on live TV.

Vargas’ reaction is hilarious. Here’s the video.