What's interesting is that Arnold at first was unsure of the Terminator script ...
Arnold: "Ivan, this script ... is pretty weird ..."
Director Ivan Reitman: "Yeah, perfect for you."
After getting paid, Arnold bought an office building in LA. After a few more films and buildings, he was a billionaire, married into the Kennedy family, and became Governor of California, a stepping-stone to becoming President (had he been a born-American.)
It all started with a weird film script.
And back to the topic of materials, Arnold is literally a self-made man ... all of the Mr. Olympias trained themselves.