I always wondered how it was OK that you used the name "Wizard of Oz". Isn't that a registered trademark?
The book was written over 100 years ago and is no longer copyright. The movie is still copyright which is why we don't have red slippers (the book has silver) - actually we have NO slippers but we had planned on it. Or are you able to do so because you haven't started your job there yet?
I'm not starting until November. However, I'm still allowed to keep making money from my old games but I'm just not allowed to make any new games in my spare time.