People have been eager to see the magic between Quentin Tarantino, Brad Pitt, Leonardo DiCaprio, and Margot Robbie. We finally have a sneak peek. The first trailer for Once Upon a Time in Hollywood was released today. The movie is based in the late 1960s. DiCaprio is a TV actor and Pitt plays a stunt double. The action takes place around the time of the Charles Manson Family murders. Robbie plays Sharon Tate. The film hits theaters on July 26th.