Weird to see the proliferation over the years of think-pieces on the lack of libido in mainstream film. They act like it's evidence that America is dead from the waist down -- as if people can't just go watch sex whenever they want, without having to share the experience with an auditorium full of people. Depictions of sexuality have just become more private, that's all.

But old films still featured recognizable human bodies and human faces—bodies that could theoretically be achieved by a single person without the aid of a team of personal trainers, dieticians, private chefs, and chemists.

Well, but when those bodies we not the absolute epitome of military fitness, would you believe them doing the feats that they do in the movies.
Sure it's not 100% believable even now, but it kinda feels more "fine" if someone with stone-like protruding abs and pecs, takes a pillar to the torso and gets pushed back 50ft instead of getting squished.