How many movies have Andrew Greenberg and William R. Kowalchuk Jr. collaborated on?

They have worked on 3 movies together! Their first movie together was Rudolph the Red-Nosed Reindeer: The Movie (1998) and was their highest rated movie together. They have not worked together since Greatest Heroes and Legends of the Bible: Daniel and the Lion's Den (2003). They are most known for their animation films together.