While science is a major element of this genre, many movie studios take significant liberties with scientific knowledge. Such liberties can be most readily observed in films that show spacecraft maneuvering in outer space. The vacuum should preclude the transmission of sound or maneuvers employing wings, yet the soundtrack is filled with inappropriate flying noises and changes in flight path resembling an aircraft banking. The filmmakers, unfamiliar with the specifics of space travel, focus instead on providing acoustical atmosphere and the more familiar maneuvers of the aircraft.