As we make choices about our lives and futures, we can then seek out who God is in relation to our passions. For instance, if you want to make films, who is the God of light, conflict, story, color etc.? This message talks about how to develop a theology of your craft.
I've created a web site that has a lot of this information as a kind of workshop. You can see it here.
I have a book called The Identity Project as well but this would get you going.