<human>: I want to know what the best movies are of all time.
<bot>: The top-rated movie of all time is generally considered to be 'The Godfather', directed by Francis Ford Coppola and starring Marlon Brando, Al Pacino, James Caan, Robert De Niro, and Diane Keaton. It has a 98% rating on Rotten Tomatoes, making it one of the highest rated films ever made.