Which film maker established his own studio, American Zoetrope, with help from George Lucas?

American Zoetrope is a privately run American film studio, centered in San Francisco, CA. It was founded by Francis Ford Coppola and George Lucas. It (American Zoetrope) is now owned entirely by Coppola's son and daughter (Roman Coppola and Sofia Coppola).

American Zoetrope opened its doors in December 1969. Since that time, the studio has produced not only the films of Coppola (including "Apocalypse Now" (1979), "Bram Stoker's Dracula" (1992) and "Tetro" (2009). It has also made George Lucas's pre-Star Wars films: "THX 1138" (1971) and "American Graffiti" (1973). In addition, many others by avant-garde directors such as Jean-Luc Godard, Akira Kurosawa, Wim Wenders and Godfrey Reggio have used this studio to make bug films.

American Zoetrope was an early adopter of digital film making, including some of the earliest uses of HDTV. In the beginning, the staff and executives at this studio liked to say that being at Zoetrope "was like the difference between a big, cold, corporate atmosphere and a start-up company with a mesmerizing leader and a young team of idealists". They were kind of happy-go-lucky, whereas staff members and officials at the other studios were always seen as being rigid and inflexible.