Complex sentence: Peter Stone adapted the screenplay from the 1973 novel of the same name, written by Morton Freedgood (under the pen name John Godey) about a group of criminals taking the passengers hostage inside a New York City Subway car for ransom.
Split into simpler sentences: Peter Stone adapted the screenplay from the 1973 novel of the same name written by Morton Freedgood under the pen name John Godey. As in the novel, the film centers on a group of criminals taking the passengers hostage inside a New York City Subway car for ransom.