How many movies have Brian George and Sam Register collaborated on?

They have worked on 7 movies together! Their first movie together was Superman/Batman: Public Enemies (2009) while their highest rated movie together was Batman: Under the Red Hood (2010). They have not worked together since Merry Little Batman (2023). They are most known for their action films together.

Role
The Penguin (voice)
Crew
Executive Producer
Role
Alfred Pennyworth (voice)
Crew
Executive Producer
Role
Ra's Assistant (voice)
Crew
Executive Producer