How many movies have Donnie Wahlberg and Jordan Knight acted in together?

They have worked on 9 movies together! Their first movie together was New Kids On The Block: Hangin' Tough Live (1989) while their highest rated movie together was 1½ Knights - In Search of the Ravishing Princess Herzelinde (2008). They have not worked together since New Kids On the Block: Live from Philadelphia (2023).