If a speculator is correct half of the time, he is hitting a good average. Even being right 3 or 4 times out of 10 should yield a person a fortune if he has the sense to cut his losses quickly on the ventures where he is wrong.
Some of the supporting roles that I've done as an actor, I took them because I knew that I would get to watch some of the leading guys in the movies, and also I'd get to work with them.

