As an actor, one thing you can really hope for is that you will eventually get to act alongside some of legends of film...and for Actor and Friend of the Show, Rob Riggle, that chance finally arrived in the form of the family comedy, "The War With Grandpa".Not only did Rob get to play Uma Thurman's husband...but he got to act alongside Hollywood legends Robert DeNiro and Christopher Walken!!!We got the chance to catch up with our old friend to ask him about this once in a lifetime experience and what is on the horizon for him!!