Howl is a 2010 film co-directed by Rob Epstein and Jeffrey Friedman biographical film. The main story of the film revolves around Allen Ginsberg, an American rebel poet. It tells the story of his famous poem "Howl" which attracted the attention of the court at that time because of its too sensitive content, which eventually led to the publisher being accused of spreading obscenity. Literary works charges brought to court. In the movie, we can see lawyers from both sides having a heated debate in court and calling a large number of witnesses and experts. Allen Ginsberg is vividly presented in the movie, playing the saxophone-like call sign at the party, conveying the spiritual theme of the "Beat Generation": freedom of speech, freedom of love and sex, and equality for all freedom of life and thought. Allen's expectation of love is very simple, but his object is not the opposite sex. His 40-year love affair lasted until his death, and the radical youths leaned against each other on the bench and smiled, leaving a deep impression