One has to devote oneself to a particular pursuit. To be successful at anything, you have to make a total commitment to it.
Celebrities say they date other celebrities because they have the same job. But I think they just like dating famous people. Celebrities attract each other, like cattle.
It's fun when you start a movie, because it's kind of like you get to go Christmas shopping... you get to make your wish list and you start thinking about what each character needs.