Matthew McConaughey Speaks on his New Movie 'Interstellar'

Oscar-winning actor Matthew McConaughey says his latest movie was a test of endurance. The actor, who famously shed a quarter of his body weight for his role in Dallas Buyers Club - was speaking at the London premiere of Interstellar.

He said filming for Interstellar lasted five months, considerably more than the 25 days he said it took to film Dallas Buyers Club, which he won his best actor Oscar for. Interstellar is a three-hour epic about a team of astronauts who venture beyond our galaxy to find a new home for the human race.