Peter Lindsay Weir, AM (born 21 August 1944) is an Australian film director. After playing a leading role in the Australian New Wave cinema with his films such as Picnic at Hanging Rock
, The Last Wave
, Weir directed a diverse group of American and international films—many of them major box office hits—including the Academy Award nominees Witness
, Dead Poets Society
, Green Card
, The Truman Show and Master and Commander.