Amateurs (1999)

A seventy-year-old ex-amateur filmmaker comes out of his years of inactivity and decides to shoot the remake of one of his old short films from the 1970s. While he is waiting for the porno-star Sandy Balestra, he tries to convince a young woman to play the role: she is to masturbate in front of the 16mm camera while he is filming her and to reach orgasm before the end the ten-minute long spool.