HBO has released the initial trailer for Ryan Murphy's small-screen adaptation of Larry Kramer's Tony-winning drama The Normal Heart. Mark Ruffalo stars as Ned Weeks, the rabble-rousing activist determined to get New York City to recognize the onset of a mysterious illness that would later become known as AIDS. Joining Ruffalo in the principal cast are Matt Bomer as Felix, Julia Roberts as Dr. Emma Brookner, Taylor Kitsch as Bruce Niles, and Jim Parsons as Tommy Boatwright.

Check it out in the video below.