How many movies have Frank Welker and Matt Williames collaborated on?

They have worked on 3 movies together! Their first movie together was Looney Tunes: Back in Action (2003) while their highest rated movie together was Curious George 2: Follow That Monkey! (2009). They have not worked together since Curious George 2: Follow That Monkey! (2009). They are most known for their family films together.