Paul McCartney's 'My Valentine'

Celebrities arrive for world premiere of video "My Valentine" directed by Paul McCartney in California.

'Marvel's The Avengers' premieres in Hollywood

Cast members attend the world premiere of the film "Marvel's The Avengers" in Hollywood, California April 11, 2012.

'Prometheus' premieres in Paris

Cast members attend the French premiere of the movie "Prometheus" in Paris, April 11, 2012.

Titanic Memorial Cruise

The Titanic Memorial Cruise is retracing the voyage of the ill-fated Titanic liner, which hit an iceberg and sank 100 years ago on April 15, 1912.

Salmon Fishing in the Yemen

Celebrities attend the premiere of Salmon Fishing in the Yemen at the Odeon Kensington.

Retracing Titanic

The Titanic Memorial Cruise retraces the voyage of the ill-fated Titanic liner, which hit an iceberg and sank 100 years ago on April 15, 1912.

'The Three Stooges' premieres in Hollywood

Cast members attend the Hollywood premiere of "The Three Stooges: The Movie" in Los Angeles, California April 7, 2012.

'Battleship' cast members attend news conference

Cast members of the film "Battleship", including singer Rihanna, attend a news conference atop a flight deck of aircraft carrier USS George Washington at Yokosuka port, south of Tokyo April 2, 2012.

Rihanna attends film 'Battleship' premiere in Tokyo

Rihanna promotes 'Battleship'

Rihanna poses for a photograph at a photocall to promote the film 'Battleship', on the roof of a hotel in central London March 28, 2012.

Titanic 3D premieres in London

World premiere of "Titanic 3D" was held at the Royal Albert Hall in London, March 27, 2012.

'Bully' screened in NY

Celebrities attend the screening of "Bully" at The Paley Center for Media in New York on March 20, 2012.