Matthew McConaughey won the Academy Award for best actor in 2014 for his portrayal of Ron Woodroof in "Dallas Buyers Club." He explains to Timothée Chalamet that the role required him to lose 47 pounds, which he says provided him with “clinical memory.” The full conversation between the two award-winning actors airs Saturday, February 21 at 7p ET/PT on CNN and streams on the CNN app. | CNN

Matthew McConaughey gave his celebrated Best Actor acceptance speech at the Oscars on March 2, 2014, after winning for his performance in Dallas Buyers Club. The speech is remembered for outlining his three essential needs: something to look up to (God), something to look forward to (family), and someone to chase (his future self). Credit: @theacademy | History In Pictures