sentences:  The re-polished group's first CD single "U" was released on June 7, 2006, which was their most successful single until the release of "Sorry, Sorry" in March 2009.He appeared in "Attack on the Pin-Up Boys", a 2007 high school Korean film that starred all members of Super Junior except Kyuhyun.He plays the narrator of the story; a student who investigates the mysterious happenings at school.