Capuchin monkey
Capuchin monkeys are the most common featured monkeys in the movies Outbreak, Pirates of the Caribbean: The Curse of the Black Pearl (and its sequels), Zookeeper, George of the Jungle, and The Hangover Part II. Ross Geller (David Schwimmer) on the NBC sitcom Friends had a capuchin monkey named Marcel.  Crystal the Monkey is the famous monkey actress.