How many movies have Kenji Utsumi and Mitsuko Horie acted in together?

They have worked on 2 movies together! Their first movie together was Dr. Slump and Arale-chan: Hoyoyo! The Treasure of Nanaba Castle (1984) while their highest rated movie together was Dragon Ball: Mystical Adventure (1988). They have not worked together since Dragon Ball: Mystical Adventure (1988).