​​ HBO Films is a division of the cable television network HBO (short for Home Box Office) that produces feature films and miniseries. While much of HBO Films output is created directly for the television market, such as the film Witness Protection and the miniseries Angels in America, Band of Brothers, The Pacific, Generation Kill, and Mildred Pierce, it has also branched into theatrical distribution with such critically acclaimed films as Elephant and American Splendor. These theatrical releases were usually handled by Picturehouse, a joint venture between HBO Films and New Line Cinema; both are owned by Time Warner.