How many movies have Mark Hildreth and Walter P. Martishius collaborated on?

They have worked on 5 movies together! Their first movie together was Barbie as Rapunzel (2002) while their highest rated movie together was Barbie as The Princess & the Pauper (2004). They have not worked together since Barbie and the Three Musketeers (2009). They are most known for their family films together.