Planet of the Apes was a gigantic challenge, making the clothes work so people could do stunts and action in the clothes. I really learned a lot about that in that movie. ↗
And my father, being a good Swiss puritan, always really insisted that if I was going to be an actor, I shouldn't just be an actor, I should know about the whole process. ↗
In fact it's quite gratifying for me to see some of the people who really objected to this method of working now being quite so profligate in their use of it. ↗
I think we all realized that we had really been replicating things that had already been happening. I don't know if we were smart enough to realize that we were in a cul-de-sac, but we were curious. ↗