How many movies have Len Uhley and Susan Blu collaborated on?

They have worked on 3 movies together! Their first movie together was An American Tail: The Treasure of Manhattan Island (1998) while their highest rated movie together was An American Tail: The Mystery of the Night Monster (1999). They have not worked together since The Land Before Time VII: The Stone of Cold Fire (2000). They are most known for their family films together.