How many movies have Erin E. Riegel and Susan McNamara collaborated on?

They have worked on 2 movies together! Their first movie together was Captain Marvel (2019) while their highest rated movie together was Birds of Prey (and the Fantabulous Emancipation of One Harley Quinn) (2020). They have not worked together since Birds of Prey (and the Fantabulous Emancipation of One Harley Quinn) (2020).