A new documentary by filmmaker Randall Wright explores the work of the pioneering British Pop artist, David Hockney. Hockney, who rose to prominence in the 1960s, is best known for his flat, colorful portraits, landscapes, and still lifes. The film, aptly titled Hockney, forgoes the biographical approach, focusing instead on the painter’s work and his artistic approach. The documentary premieres in New York and Los Angeles this week.