How many movies have Joey Waronker and Ken Stringfellow collaborated on?

They have worked on 1 movie together! Their first movie together was R.E.M. Unplugged: The Complete 1991 and 2001 Sessions (2014) and was their highest rated movie together. They have not worked together since R.E.M. Unplugged: The Complete 1991 and 2001 Sessions (2014).