Heya tim,
Although I really think it doesn't matter what your undergrad degree is, I think english would be aok...reason saying is that from me and my friend's experiences with applying to grad schools, what ucla/usc seems to care about most, is the stories that you can tell/how well you can communicate. and that is showcased in the application through writing...personal essay and treatments. I just recently got into the UCLA and USC grad producing program...and it's all based on writing (and work experience). My friend got into the production program at usc and she is a prolific/strong writer. We both graduated from UCSD with a undergrad major in computing and the arts.
anyway, hope that helps....