I've not as yet found one hobby that would absorb me completely when I'm not working, but I have just bought a new apartment and didn't quite bargain for the amount of effort and time and money that that absorbs.
I've never been to Hollywood. I can count the number of times I've been to Los Angeles on my hands. I've never made a movie there and I've never been there for working reasons. The only reason to go there is for silly awards shows.
For me, a dancer is part of an artist's entertainment - 'backup dancer' isn't even in my vocabulary.