NEW YORK — Kim Basinger has joined Kenneth Branagh, Drew Barrymore and Leonardo DiCaprio in the cast of Woody Allen’s new film, sources said. Basinger, who took time off to have a baby, made her return in the Warner Bros. drama “L.A. Confidential,” which premiered at the Cannes Film Festival.Allen’s film, which is being produced by Jean Doumanian, currently is untitled and doesn’t have a distributor. Allen set up the film he just completed, “Deconstructing Harry,” at Fine Line. Basinger’s repped by CAA.