In Scream (1996), Billy sneaks into Sidney’s bedroom and turns a TV showing of The Exorcist into a complaint about their sex life. Knowing he’s Ghostface gives that conversation a different kind of menace.
He climbs through her window at night just after her father leaves the room. When a startled Sidney asks why he’s there, Billy explains that watching The Exorcist “got me thinking of you.”
His explanation is a ratings joke. The TV broadcast had “all the good stuff” removed, and he thinks their relationship has undergone the same treatment. He describes their earlier intimacy through R and NC-17 ratings, then calls their current relationship “edited for television.”
Sidney’s mother was murdered a year earlier, and Sidney’s been holding back physically as she deals with that loss. Billy uses movie references to press for more intimacy, suggesting “on-top-of-the-clothes” activity. They kiss, but Sidney pulls away and tells him to leave, with her father still in the house.
The window entrance and flirty banter give Billy the familiar role of a boyfriend sneaking over after dark. The eventual reveal puts the killer inside that same romantic setup.
Even here, he’s using horror movies to talk about what he wants from Sidney; later, he’ll describe life as “all a movie.”
