Would Texas become more liberal and California become more conservative?
California was a solid GOP state until the 90s. It was still considered a swing state in 1988! It took until 2000 to it was a solid Democratic state and uncontested.
What happened was Pete Wilson. He was governor of California during the 90s. He proposed Proposotion 187 in 1994, which denied social services to illegal immigrants. This included public schools.
It passed and Wilson won reelection, but that firmly cemented the Hispanic population to vote democratic, even higher then the national average!
Hollywood didn't make California democratic. It was a big factor but not the deciding factor. Northern California (Cascadia) was always liberal. So is San Francisco. But the Hispanic population turned it a solid D.
So, Hollywood in Texas might make it a swing state sooner.