For example, according to Loose Change, American Airlines Flight 77 used Pratt & Whitney engines. But if you did a quick five minute search of the planes FAA registration, you'd realize that the engines were actually Rolls-Royce RB211s. Something that simple, yet still the movie manages to screw it up... and goes on to base an entire segment off of it.Flight 77s FAA Registry: http://registry.faa.gov/aircraftinquiry/NNumSQL.asp?NNumbert xt=644aa