The Rainmaker was building up to the trial where Rudy faced off against Leo - but the finale could be divisive for fans looking for a specific ending. Based on John Grisham's 1995 novel of the same name, The Rainmaker follows young lawyer Rudy (Milo Callaghan), who is fired from his prestigious white-collar firm and signs on with small-time ambulance chaser Bruiser (Lana Parrilla). Rudy subsequently tries to win in court over his former boss. The book was adapted into a movie by Francis Ford Coppola in 1997 starring Mickey Rourke and Matt Damon.