Q (1982)

Its name is Quetzalcoatl. Just call it Q. That's all you'll have time to say before it tears you apart!

New York police are bemused by reports of a giant flying lizard that has been spotted around the rooftops of New York, until the lizard starts to eat people. An out-of-work ex-con is the only person who knows the location of the monster's nest and is determined to turn the knowledge to his advantage, but will his gamble pay off or will he end up as lizard food?