The documentary film Close Encounters of the Fifth Kind: Contact Has Begun centers on popular ufologist Dr. Peter Greer and evidence of extraterrestrial life. Through new video and photographic proofs and in-depth interviews with notable figures such as Princeton's Adam Curry, CIA's Dr. Russell Targ, and civil rights attorney Daniel Sheehan, the film posits that a forgotten form of spiritual knowledge is humanity's key to finally make contact with alien civilizations.