[Discussing his ambitious volcano set for the James Bond film
You Only Live Twice (1967):
"The challenge appealed to me also, the shape of the volcano. I knew if
it didn't work I'd never work in movies again. [Producer] Cubby
Broccoli asked me how much it would cost. I quoted him a million
dollars, which at that time was a huge amount of money. He said if I
could do it for a million, then do it. That's when I really began to
worry."