I tend to come up with people more than situations - most of my books start with a character.
If you get anything creative going, then the work and play thing is the same thing, I feel.
I look for an interesting and often times, fresh character. Something different that what is done all the time or than I've done recently. I look at who is directing. Those two variables as well as a third, which is the content and the quality of the screenplay. I look at the arcs of the scenes and