Claim: Jarhead was based upon the 1957 autobiographical fiction novel On the Road.
Evidence: Jarhead is a 2005 American biographical war drama film based on U.S. Marine Anthony Swofford 's 2003 memoir of the same name , directed by Sam Mendes , starring Jake Gyllenhaal as Swofford with Jamie Foxx , Peter Sarsgaard and Chris Cooper.
Jarhead is a 2003 Gulf War memoir by author and former U.S. Marine Anthony Swofford.