Stephen Amell Swears at Worst Time - Watch Now!

Stephen Amell touches down at an airport on Sunday (March 17) in Vancouver, Canada.

The 34-year-old actor was in the U.S. to promote his new movie Teenage Mutant Ninja Turtles: Out of the Shadows at WonderCon in Los Angeles.

While at the event, Stephen stopped to do some press interviews about the film, including one with Young Hollywood.

During the interview, Stephen accidentally swore and then apologized, joking, “Sorry, Young Hollywood!”

Stephen retweeted a clip of the moment later, writing, “Did 30 interviews, swore during the Young Hollywood interview. SMH.”

Watch the clip below!