If for nothing else, Greetings would be memorable as the second feature-length directorial effort of Brian DePalma (his first, 1966's The Wedding Party, was released shortly afterward). A satire of late-1960s manners and mores, the film aims its barbs at Lyndon B. Johnson, Vietnam, the draft, the counterculture, Greenwich Village and the John F. Kennedy assassination. Billed first, Robert DeNiro actually has a supporting role as a young longhair who tries to help his best pal (Jonathan Warden) flunk his Army physical. Gerrit Graham is a JFK conspiracy theorist who may well have good reason to be paranoid. Though largely ignored by the mainstream press in America, Greetings was effusively honored at the 1969 Berlin Film Festival. The film was originally rated X due to its considerable sexual content.
~ Hal Erickson, All Movie Guide