How many movies have Andy Snavley and Kevin Costner collaborated on?

They have worked on 2 movies together! Their first movie together was Mr. Brooks (2007) and was their highest rated movie together. They have not worked together since Swing Vote (2008).

Swing Vote (2008)

Crew
Sound Re-Recording Mixer
Role
Bud Johnson
Crew
Sound Effects Editor
Crew
Producer

Mr. Brooks (2007)

Crew
Sound Effects Designer
Crew
Producer
Role
Earl Brooks