Oscars 2014: And the winners are ...

Best Actor: Matthew McConaughey

Matthew McConaughey accepts the Oscar for best actor for his role in "Dallas Buyers Club" at the 86th Academy Awards in Hollywood, California March 2, 2014. [Photo/Agencies]

Matthew McConaughey won the Oscar for best actor on Sunday for his role in "Dallas Buyers Club" as a homophobic, rodeo-loving Texan who contracts AIDS and becomes an unlikely savior for gay patients and drug addicts desperate for treatment.

The win is the first Academy Award for McConaughey, once known primarily as a handsome leading man in romantic comedies. In "Dallas Buyers Club," the actor lost some 50 pounds (23 kg) to play real-life crusader Ron Woodroof, a cowboy who fought the government for access to AIDS medicines in the 1980s.