Hollywood star Jack Nicholson made an early fortune by betting on horses at New Jersey’s Monmouth Park Race Track.The actor admits he had a knack for picking winners.He tells America’s Parade magazine, "I was a good handicapper. That’s where I got my spending money."The first car I bought was with racetrack money. Even when I worked at MGM (studios), I ran football cards for the bookie there."In the entire season we paid off just two tickets. That’s how hard it is to pick three winners against a spread."