How many movies have Denis Leary and Joe Mantegna acted in together?

They have worked on 4 movies together! Their first movie together was National Lampoon's Favorite Deadly Sins (1995) while their highest rated movie together was Comedy Central Roast of Denis Leary (2003). They have not worked together since Comedy Central Roast of Denis Leary (2003). They are most known for their comedy films together.