You're telling me none of these pale skinned mofos got a sunburn?

It's a movie.

They're at a far northerly latitude, where there's less UV and less power in the sunlight.

Yeah and most popular movies these days have guys and gals who wear capes that don't get caught in revolving doors and machinery.

Sunblock applied before going out. I didn't see anyone brush their hair, but I'm sure they did.

They had umbrellas when the film cameras weren't on them.

That’s what the human sacrifices were for. They made a deal with their god that if they offered him human sacrifices that they could lay out in the sun all day without having to put on greasy sunscreen.

Mark did point out,
“That guy has a really red face.”

I live in Norway. I never use sunblock (in Norway), and it is extremely rare that I get sunburned. And when I do, it's so slight that I don't even feel it.