How many movies have Hiroyuki Sawano and Nanako Okazaki collaborated on?

They have worked on 2 movies together! Their first movie together was The Seven Deadly Sins: Prisoners of the Sky (2018) while their highest rated movie together was Fate/strange Fake -Whispers of Dawn- (2023). They have not worked together since Fate/strange Fake -Whispers of Dawn- (2023).