Colin Farrell joins Diane Keaton in this week's celeb potty mouth club.
While being interviewed by CNN's Brooke Anderson at the Sundance Film Festival about his new film, "In Bruges," he accidentally let a four-letter word slip out, followed quickly by another one!
Colin said of his director allowing him to keep his native Irish accent while playing a hit man in London based film, "F--- that, he's Irish!" referring to the English accent Colin uses in the upcoming Woody Allen film, "Cassandra's Dream."
Colin, realizing his live TV error, followed it up with a live S-bomb.