Of course they have better resolution, but actors shouldn’t look like wax works. Predator is a prime example of this. The early Blu-Ray release, even though it’s an MPEG 2 encode, is way better.
Criterion is about the only label that gets things right. Now that they’re doing Kubrick films again, I may see that accursed pink tennis ball shot in The Shining finally fixed. That’s the only movie that’s going to make me invest in a fifth optical disc video format in my lifetime.
Some movies are going to be an upscale no matter if you’re watching 4K or not. Pixar has flat out said it’s not worth the time and expense to render their films at 4K.
You know we’re all going to be discussing 8K in a few years anyway. 😛