Funny enough, ive only had the 'What animal would you be'.
The best thing is I like -many- types of psychology, including industrial organizational psychology (i.e. workplace psychology)(Including less than a semester left on my bachelors). Most of these questions actually have reasons that they are there, but they coincide with other questions in the interviews.
Most of the time people like things because of social learning. Liking certain films may correlate to a certain personality, which would be beneficial to the employer. It may not always be right, but it can be right -alot-. Oh, and correlation does matter, sorry people who want to say correlation does not equal causation. In Psychology, correlation is still very important.
So yeah, kinda weird, but helpful alot of the time.
EDIT: Also, to add to some posters, yes, these questions are worth the money that corporations put into it. The amount of money it takes to train someone, then lose them, is alot more than getting these interview questions that -work- and hire the right people.
Believe it or not, peoples personalities do fit in with jobs, and the better a personality someone has to a job, the more likely they will be more productive than others.
These questions are -worth- the money, no question.