How many movies have Barry Liu and Sebastian Salm collaborated on?

They have worked on 8 movies together! Their first movie together was Signed, Sealed, Delivered: Truth Be Told (2015) while their highest rated movie together was Signed, Sealed, Delivered: Lost Without You (2016). They have not worked together since Signed, Sealed, Delivered: Lost Without You (2016). They are most known for their tv movie films together.