For his upcoming movie Dallas Buyers Club, Matthew McConaughey got down to a tiny 135 lbs. to play AIDS patient Ron Woodroof, and now only ET can bring you the first dramatic scenes showing his massive slim-down.
McConaughey's character is a former top rodeo cowboy with a free-wheeling lifestyle until a devastating HIV diagnosis turns his world upside down. In this sneak peek trailer of the film -- set in the mid-80s in the early days of the AIDS epidemic -- a doctor tells Woodroof he only has 30 days to live.
PICS: Star Sightings
Co-starring in the movie is Jennifer Garner, who plays a sympathetic doctor. But McConaughey's character becomes frustrated with conventional treatments for HIV/AIDS patients and begins smuggling non-approved medications into the U.S. from abroad.
His "buyer's club" business eventually becomes booming as he sells to a variety of patients, including a colorful transsexual named Rayon, portrayed by Jared Leto.
RELATED: Leto Opens Up About His Dallas Transformation
Watch the video for our sneak peek of Dallas Buyers Club, which opens November 1.