How many movies have Chris Vaina and Hans Bjerno collaborated on?

They have worked on 2 movies together! Their first movie together was The Avengers (2012) while their highest rated movie together was The Dark Knight Rises (2012). They have not worked together since The Dark Knight Rises (2012).

Role
Thug (uncredited)
Crew
Aerial Director of Photography
Role
Running Pedestrian (uncredited)
Crew
Camera Operator