Il telefono rosso is also the Italian title of Étienne Périer's 1968 comedy Le Rouble à deux faces.
Telefono rosso (Red Telephone) is a 1986 film, the first Italian hardcore pornography production. Starring Ilona Staller and directed by Riccardo Schicchi, it was produced by their company Diva Futura.
Five middle-aged men—Ron Aron, Kevin Clarke, Barry Knight, Russell Moore, and Derrick Stanton; all of whom have non-sexual roles—celebrate Barry Knight's 50th birthday in a spectacular home. They reflect on what they did when they were about 18 and fantasize scenes of young men together.
Mayuri runs an unsuccessful inn in the country. Miku comes to work for her. Romantic complications ensue between Miku, Mayuri and Mayuri's brother Kazuhiko.