Actress Ellen Barkin (“Sea of Love”), 46, is expected to get married to cosmetics billionaire Ronald Perelman, 57, according to a spokesperson for the groom-to-be. News reports indicate that the wedding is set to take place tonight in an orthodox New York Synagogue. This will be his fourth marriage. (His ex-wives include “Live!” gossip reporter Claudia Cohen and onetime Washington mover and shaker Patricia Duff, with whom he is now bitterly battling in court over support payments for their 5-year-old daughter. He has five other children and one grandchild.) Barkin’s one previous spouse was actor Gabriel Byrne. They have two children.