How many movies have Carl von Haartman and Hugo Riesenfeld collaborated on?

They have worked on 3 movies together! Their first movie together was The Woman Disputed (1928) while their highest rated movie together was Hell's Angels (1930). They have not worked together since Hell's Angels (1930). They are most known for their drama films together.

Role
Zeppelin Commander
Crew
Original Music Composer
Crew
Music Arranger
Role
Soldier (uncredited)
Crew
Original Music Composer