Tom Cruise kissing Katie Holmes on the red carpet - "War of the Worlds" New York City Premiere.

Hong Kong film actor Jackie Chan, left, kisses Bollywood actress Mallika Sherawat during an event to promote their movie "The Myth" in Bombay, India, Tuesday, Nov. 22, 2005. The movie was shot in China and India and Sherawat is cast as an Indian princesswith whom Chan's character falls in love. (AP Photo/Aijaz Rahi)

Actor Adrien Brody suprises presenter Halle Berry with a kiss after he won the Oscar for best actor for his work in The Pianist at the 75th annual Academy Awards Sunday, March 23, 2003, in Los Angeles. (AP Photo/Kevork Djansezian)

Actress and singer Jennifer Lopez, 31, kisses her former husband Cris Judd, 32 during a party at the Donatella Versace villa, in Moltrasio, on Lake Como, Italy, Tuesday, Oct. 2, 2001. (AP Photo/Luca Bruno)

Carmen Electra looks back at the audience after getting a kiss from her husband Dave Navarro as they model one-of-a-kind rock inspired attire designed by Tommy Hilfiger, Friday, April 22, 2005, in Los Angeles at the 12th Annual Race to Erase MS. This year's theme was Rock to Royalty, which inspired those attending to wear diamonds tiaras and black leather. (AP Photo/Rene Macura)