A passenger aboard Royal Caribbean's Explorer of the Seas video-taped the collision with the NCL Norwegian Star last week (September 14, 2012) in port in Bermuda. The NCL ship was hit by high winds (75 MPH) which caused the Star to break away from its mooring lines and strike the stern of the Royal Caribbean ship.
The video was shot from the Windjammer cafe and you can hear the passengers excitedly chattering and sometimes laughing throughout the incident. A Royal Caribbean officer appears in the video and says "you hit my ship!"
The video is by Floobboober (YouTube):