> but it hardly conveys what's happening inside the head of the hacker
Mr Robot is another great one at that. It has layers of trippy stuff, but the hacking stuff is both real-ish and pretty well explained by the main character's monologues.
I mean, it was a solid interpretation of cyberspace as envisioned by one W. Gibson (the name of the system not being a coincidence, obviously). As it was meant to be. You (hopefully) wouldn't see boring nmap terminals in a hypothetical Neuromancer filmization, either!