How many movies have Alan Reed and Liam O'Brien collaborated on?

They have worked on 2 movies together! Their first movie together was The Redhead and The Cowboy (1951) while their highest rated movie together was Here Comes the Groom (1951). They have not worked together since Here Comes the Groom (1951).

Here Comes the Groom (1951)

Role
Walter Godfrey
Crew
Story
Crew
Screenplay

The Redhead and The Cowboy (1951)

Role
Col. Lamartine (Confederate leader)
Crew
Screenplay