sentences:  Warner remained active as an independent producer until the early 1970s to run some of the company's distributions and exhibition division.Among his last productions was a film adaptation of a Broadway musical, "1776", which was released through Columbia Pictures.Before the film's release, Warner showed a preview cut to U.S. President Richard Nixon, who recommended substantial changes, including the removal of the song 'Cool, Cool, Considerate Men' that struck him as veiled criticisms of the ongoing Vietnam War.