Unidentified Flying Objects
Unidentified Flying Objects is a 1956 semi-documentary about the development of the UFO phenomenon in the United States. Video clips from the documentary have often been used in other UFO documentaries and television episodes related to UFOs
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In 1952 Hollywood producer Clarence Greene saw an unusual object twisting in the sky. He decided to report the sighting, and contacted US Air Force public information officer Albert M. Chop, who was in charge of answering UFO questions from reporters and the public. Intrigued by his experience, Greene decided to film a documentary movie about the UFO phenomenon. When Chop told Greene about the existence of video footage of UFOs, Greene obtained the footage for analysis and display in his documentary.[3]
The documentary starts in 1947, with the first widely-publicized UFO sightings in the United States, including recreations of the Kenneth Arnold UFO sighting, the Mantell UFO incident, and the Gorman Dogfight. It then traces the development of UFOs as both a popular fad and a serious concern for the US Air Force. The history of Project Sign, the first Air Force study of the UFO phenomenon, is discussed. The documentary then focuses upon Albert M. Chop and his growing involvement with UFOs. Chop is assigned as the public information officer at Wright-Patterson Air Force Base in Dayton, Ohio, in the late 1940s. In that position he is required to answer numerous news media queries about UFO sightings and what the Air Force knows about them. Although he is initially portrayed as a UFO debunker, Chop gradually changes his views as the movie progresses, and he comes to believe that UFOs are unknown, and possibly extraterrestrial, aircraft. By 1952 Chop has moved to Washington, DC, where he is the press spokesman for Project Blue Book. The documentary analyzes two famous pieces of UFO footage: the Mariana UFO Incident of 1950, in which the manager of the Great Falls, Montana minor-league baseball team claimed to have filmed two UFOs flying over the baseball stadium, and the 1952 UFO film taken near the Great Salt Lake in Utah by a US Navy photographer, Delbert Newhouse. The documentary concludes with the famous 1952 Washington DC UFO incident, in which Albert Chop played a central role. The documentary recreates Chop's experiences during the incident, and at the end of the documentary Chop states his belief that UFOs are a "real", physical phenomenon of unknown origin.
Link Movie: UFO - Documentary

UFO conspiracy theories argue that evidence of unidentified flying objects and extraterrestrial visitors is being suppressed by various governments around the world, most notably the United States government. Such conspiracy theories commonly argue that Earth governments, especially the Government of the United States, are in communication and/or cooperation with extraterrestrials despite public claims to the contrary, and further that some of these theories claim that the governments are explicitly allowing alien abduction
Various UFO conspiracy ideas have flourished on the internet and were frequently featured on Art Bell's program, Coast to Coast AM.[2] According to MUFON, the National Enquirer reported that a survey found 76% of participants felt the government was not revealing all it knew about UFOs, 54% thought UFOs definitely or probably existed, and 32% thought UFOs came from outer space.[3]
Notable persons to have publicly stated that UFO evidence is being suppressed include Senator Barry Goldwater, Admiral Lord Hill-Norton (former NATO head and chief of the British Defence Staff), Brigadier General Arthur Exon (former commanding officer of Wright-Patterson AFB), Vice Admiral Roscoe H. Hillenkoetter (first CIA director), astronauts Gordon Cooper and Edgar Mitchell, and former Canadian Defence Minister Paul Hellyer. Beyond their testimonies and reports no substantiating evidence has been presented to support their statements and conclusions. According to the Committee for Skeptical Inquiry little or no evidence exists to support them despite significant research on the subject by non-governmental scientific agencies