Comment by kranke155

Mumbling is one thing, but most dialogue in a major production (+1-10,000,000$ ?) will be re recorded, at least partially, after the film is made in a process described as ADR.

It’s the audio mixing that’s changed into a faux “naturalism”. Just as you mentioned, 1940s and 1950s had audio mixes with strong dialogue separation. 1970s we’re different with the Easy Rider mentality and slam bam technique of filmmaking (fast and loose and cheap). 1980s and 1990s you return to your he studio system and clarity. Now we have a strange combo - the studio system has returned through the streamers yet the audio is mixed as if it was a small time indie production that can’t afford ADR (no Netflix production will have issues budgeting ADR however).

It’s an audio mixing choice. It will go away.