His match in every way, Robert De Niro has great fun in playing with his big screen image (as he did in 1999's "Analyze This").
Robert De Niro, having already proved his ability to do shtick in "Analyze This," furthers his breadth as a comic artist while Ben Stiller--who can deliver laughs simply by standing sheepishly and wordlessly just beyond a airline boarding ramp at the schoomarmish instructions of a ditzy reception agent--is De Niro's match.
DeNiro puts a hard, channeled sternness on his performance that is not all that different from his gang boss role in "Analyze This."
However, one wise thing the filmmakers did do was find Stiller an ideal, on-screen foil, in the person of Robert De Niro, who is quietly carving out a new career for himself with a series of loopy comedy roles ("Analyze This").
Translated, this might mean that Robert De Niro only became box office gold when he turned to comedy, to parodying his own intense machismo in "Analyze This".