An action movie star researching a role is allowed to tag along with a hardboiled New York City policeman, who finds him superficial and irritating.
 
It'll be "Hard" not to like this one.
 
FUN FACT:  According to James Woods, his role in this film was one of his toughest because his character had to constantly be angry with Michael J. Fox's character, who he found very likable in real life.