Naked Over the Fence (1973)

Rick Lemming (Rijk de Goyer) resides in central Amsterdam, where he manages a dovecote and a bar filled with slot machines. His close friend Ed Svaan, the top karate champion in the Netherlands, is infatuated with singer Lily (Sylvia Christelle). With Ed’s support, Lily signs a deal with a television director who promises to create a major film. Curious about the direction his friend and Lily are headed, Rick secretly observes the production, only to discover they are actually filming an adult movie.