Claim: Tropic Thunder was written by a person.

Justin Paul Theroux -LRB- born August 10 , 1971 -RRB- is an American actor and screenwriter . He is best known for his work with film director David Lynch . He appeared in Mulholland Drive -LRB- 2001 -RRB- and Inland Empire -LRB- 2006 -RRB- . He is also known as a screenwriter for films such as Tropic Thunder , Iron Man 2 , Rock of Ages , and Zoolander 2 . Since 2014 , he has starred in the HBO series The Leftovers and more recently starred in the 2016 film The Girl on the Train .