How many movies have Alan Marlow and Shaun Costello collaborated on?

They have worked on 20 movies together! Their first movie together was Private Practice (1975) while their highest rated movie together was China Doll (1975). They have not worked together since Afternoon Delights (1980).

Role
Theater Guy Wearing Glasses
Crew
Director
Crew
Screenplay
Crew
Editor
Role
Warren the Psychiatrist
Role
Biker with Cigarette
Role
Dr. Arnold Dunraven
Role
Bobby
Crew
Director
Crew
Writer
Crew
Producer
Role
Barney Miller
Crew
Director
Role
Football Announcer (voice) / Autograph Seeker / Guy at Party
Crew
Writer
Crew
Producer
Crew
Editor
Role
Bud Stone / Gary Wrong
Role
El Gringo
Crew
Director
Role
Luga
Role
Sex Slave (uncredited)
Crew
Director
Crew
Writer
Role
Dr. Rudolph Horne (uncredited)
Crew
Director
Crew
Writer
Crew
Producer
Role
Man in Stable
Role
Boxer Wearing Glasses (uncredited)
Crew
Director
Crew
Editor
Role
Chauffeur / Highwayman (uncredited)
Crew
Screenplay
Crew
Producer
Role
Ben Crockett
Role
Willy
Crew
Director
Crew
Writer
Crew
Producer
Crew
Editor
Role
Esther's Friend
Crew
Director
Role
Chip
Crew
Writer
Role
Phil
Role
Randy
Crew
Director
Crew
Writer
Role
Micky Finn P.I.
Crew
Director
Role
Bert
Crew
Writer
Role
Cabinet Minister
Role
Orgy Guy with Two Girls
Role
Bubbles
Role
Lola
Crew
Director
Crew
Writer
Role
Dr. Arnold Diefenbach
Crew
Director
Role
Minister
Crew
Writer
Role
Billy Baxter
Crew
Screenplay
Crew
Director
Role
The Spirits
Crew
Editor
Crew
Producer
Crew
Special Effects
Crew
Visual Effects
Crew
Main Title Designer
Role
Irving Nagy
Role
Guy in Final Class
Crew
Director
Role
Alan Mennings
Crew
Director
Crew
Writer
Crew
Producer
Crew
Editor
Role
Dr. Hyman Scheisskopf
Role
Mr. Barnes