The much anticipated screen adaptation of The Normal Heart airs on HBO later this month and if trailers one, two and three don’t have you excited, take a look at this behind-the-scenes video. Playwright and screenwriter Larry Kramer and leading players Julia Roberts, Mark Ruffalo, Matt Bomer, Jim Parsons and Taylor Kitsch discuss the historical importance of this award-winning piece, as well as the camaraderie of the ensemble cast. The film may deal with some heavy subject material, but Kramer still gleams when noting, “Mark Ruffalo playing me is embarrassing. This hunk is playing me; I just can’t believe it!” You can catch these stars, as well as stage favorites Jonathan Groff, Denis O’Hare and Joe Mantello in the Ryan Murphy-helmed flick on May 25, so now might be the time to run out for a few extra boxes of tissues.