examples of late 1960s Green Sheet ratings include: Chitty Chitty Bang Bang - C Oliver! GA Star! Y-MY-A Anzio MY-A Birds In Peru A The recommendations were not necessarily made purely on the basis of the presence or basis of objectionable content, as a film such as 2001: A Space Odyssey could be designated as MY-A despite not having as much violent intensity as films such as Ice Station Zebra (Y-MY-A). There is not a clear match between MPAA ratings applied by CARA and the Green Sheet classifications. For example, G rated films like Popi or The Stalking Moon could receive Green Sheet designations as Mature or Adult films, while M or PG rated films such as The Lion in Winter could have Green Sheet designations suggesting appropriateness for young persons. There were also adult-classified Green Sheet entries that would receive G and M/PG equivalent ratings, such as Barbarella, which was rated PG in 1977. History of film Film censorship in the United States