KNOXVILLE, Tenn. — The widow of Malcolm X is suing the brother of the late Alex Haley for at least half the money the author’s estate made on the sale of the original manuscript of “The Autobiography of Malcolm X.”Haley, author of “Roots,” collaborated with the civil rights activist on the autobiography in the early 1960s. It was published in 1964. The book was the basis for the screenplay of the movie “Malcolm X,” which opened across the country last week. The lawsuit filed Friday on behalf of Betty Shabazz of Elmsford, N.Y., seeks a minimum of $ 60,750. The lawsuit against George Haley of Silver Spring, Md., executor of his brother’s estate, also seeks an undetermined amount of punitive damages. “My counsel and I are discussing the suit,” George Haley said Saturday by telephone. According to the lawsuit, the manuscript was registered under the Federal Copyright Act as a jointly owned work of Alex Haley and Malcolm X, who was slain Feb. 21, 1965.