'Jaws' was the ultimate man vs. nature movie, and it was a movie that was basically three people against the elements, so that was the biggest influence on 'Frozen.'
I think when you're a director, it's hard to do something unless you're absolutely over-the-moon in love with it. The audience, they spend 90 minutes with it, but for you, it's anywhere between a year and a half to three years of your life, every day, working on it.
I have found that my fan base is a bit above average when compared to the common horror fan.
Hollywood would make a holocaust an animated comedy if people would pay to see it; they don't care... they just want your money.