How many movies have Douglas M. Lackey and Julia L. Walker collaborated on?

They have worked on 3 movies together! Their first movie together was The Seduction of Gina (1984) while their highest rated movie together was National Lampoon's Loaded Weapon 1 (1993). They have not worked together since National Lampoon's Loaded Weapon 1 (1993). They are most known for their comedy films together.