From CNN.

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 claims 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.