Sex in film is the motion picture presentation of sexuality and love scenes, while an erotic film is one that has an erotic quality intended to create sexual feelings. Nudity in film may be sexual or non-sexual. Love scenes, erotic or not, have been presented in films since the silent era of cinematography. Love scenes have been presented in many genres of film; while in other genres, sexuality is rarely depicted. Some films containing love scenes have been criticized by religious groups or banned by governments, or both.