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Irish American actor Sean Penn has filed for a separation from his wife, actress Robin Wright Penn.
The pair appeared at the Oscars where Penn won Best Actor for his role in "Milk” but he did not thank his wife in his acceptance speech.
They had previously filed for divorce in 2007, but then requested that it be set aside when they reconciled.
Now Penn, who used to be married to Madonna, is looking for custody of is two children, daughter Dylan 18 and son Hopper Jack, 15.
Penn, a two-time Academy Award winner, is the son of Eileen Ryan and Leo Penn, both leading actors in their day. When his father was dying from cancer, Penn arranged for him to play one last role alongside his then divorced wife in Graham Reid’s "Remembrance," a play about the Northern Irish Troubles.
Penn also signed on to play Brendan Behan in a 1990s movie about the life of one of Ireland’s most-popular writers to be directed by Jim Sheridan, but the financing fell apart at the last minute and the deal was never put back together.
Last May at the Cannes Film Festival he was the jury chairman, which awarded best new film award to "Hunger," the film about IRA hunger striker Bobby Sands, to new director Steve McQueen.