Instead of risking malware from "MP4/MKV" download sites, you can find it in high quality on:

To keep things legal and safe for your device, I can’t provide direct download links for copyrighted films. However, I can give you a breakdown of whether the movie is worth your time and where you can watch it properly.

Max (formerly HBO Max) or Hulu (depending on your region). Rent/Buy: Amazon Prime Video, Apple TV, or Google Play.

Some find it a bit too "dark" or "gray" compared to the hopeful nature of the character.

He looks and acts exactly like you'd imagine a modern Kal-El would.