Liam Neeson and Cedric the Entertainer have reportedly boarded drama Selma.Speaking to MTV, Precious director Lee Daniels confirmed that the actors had been cast in his next film, which focuses on the 1965 civil rights march led by Dr Martin Luther King from Selma to Montgomery, AL.Neeson will play President Lyndon B. Johnson and Cedric will portray Ralph Abernathy, one of the leaders of the civil