Q:Build a movie plot around this: What is the movie within the movie which the main character is Nick Lang? Smoking Gunn 2
A:
New York city Homicide detective John Moss [James Woods] is on the trail of a psychotic serial killer known as the "Party Crasher" [Stephen Lang]. He kills a drug dealer in a nightclub,and after a chaotic chase, manages to elude Moss and his colleagues once again.In Beverley Hills, California, Hollywood movie star Nick Lang [Michael J.Fox] is becoming increasingly tired of playing the same teen idol roles, and his latest movie Smoking Gunn 2, an Indiana Jones style adventure, is the final straw. He decides he wants to get the role in a gritty new film and ditch his squeaky clean image. Having seen John Moss all over the news, he wants to go to go undercover in his police department to do his research for the lead detective role.Moss is furious when his Captain, Brix, [Delroy Lindo] tells him about this, but he's no choice. Lang has pulled some strings with the mayor and Brix himself is a Nick Lang fanatic. He tells him that Lang is going to be teaming up with him under the alias of Ray Casanov, and that for the next two weeks he's going to "babysit" him and show him around and tell him how to be a cop. But Moss has other plans - he wants the Party Crasher and has no intention of letting a pampered actor get in the way.Moss talks to a gang known as the "Dead Romeos" and extracts information about the gun dealer who does business with the Party Crasher, while Nick gets very excited about finding himself caught up in a gang war shootout, and then called to another murder the serial killer has committed. Already frustrated with Nick, things get worse for Moss when he finds out that he has to take him in as well, and then during a date with his girlfriend Susan [Annabella Sciorra], Nick shows up to join them.One night, Moss and Nick go to an old warehouse with a lead on the Party Crasher, and now armed with a gun, Nick shoots a man trying to escape. But Moss tells him it was an innocent civilian, and in order to cover up the incident, it's best that Nick goes back to Hollywood and lets him deal with it. But Nick...