LOS ANGELES (Reuters) - Actress Demi Moore is seeking alimony from estranged husband Ashton Kutcher, according to divorce documents filed in a Los Angeles court on Thursday.

Kutcher, the star of CBS television comedy "Two and a Half Men," filed for divorce from the "G.I. Jane" actress in December 2012 after more than a year of separation.

Requesting financial support from Kutcher, 35, is an unusual move for Moore, 50, who was one of the top female earners in Hollywood during the 1990s. Her court filing did not specify an amount sought.

Kutcher and Moore both cited irreconcilable differences in their divorce papers filed in Los Angeles Superior Court. In Kutcher's filing, the actor said he would not seek spousal support but would not deny support to Moore.

Forbes magazine has estimated Kutcher earned $24 million from May 2011 to May 2012, making him the highest-paid TV actor.

Representatives for Moore and Kutcher did not immediately respond to requests for comment.

Moore began dating Kutcher a few years after her split from actor-husband Bruce Willis, when Kutcher was a young star on the TV sitcom "That '70s Show."

Their relationship became tabloid fodder due to their 16-year age gap, and the couple married in September 2005 in Los Angeles.

Moore and Kutcher separated in November 2011 following six years of marriage, after a San Diego woman said she had a brief affair with Kutcher.

Kutcher is currently dating his former "That '70s Show" cast-mate Mila Kunis.