Claim: Jack Reacher (film) was written by a writer.
Evidence: Jack Reacher -LRB- formerly called One Shot , or alternatively known as Jack Reacher : One Shot -RRB- is a 2012 American action thriller film written and directed by Christopher McQuarrie , based on Lee Child 's 2005 novel One Shot.
Christopher McQuarrie -LRB- born June 12 , 1968 -RRB- is an American screenwriter , director and producer.