How many movies have Marny Eng and Robin Mossley collaborated on?

They have worked on 3 movies together! Their first movie together was Dudley Do-Right (1999) while their highest rated movie together was It's a Very Merry Muppet Christmas Movie (2003). They have not worked together since It's a Very Merry Muppet Christmas Movie (2003). They are most known for their comedy films together.