Open-matte films tend to get released into theaters still open-matte, meaning it's the projectionist's job to frame it properly.

I've seen an open-matte film in a theater framed so badly that subtitles were cut off on the bottom, and boom mikes dipped into frame on top of the screen all the damn time. I complained to the manager, and they said "that's the way the studio gave it to us," and refused to fix it or refund it.

I saw the same movie - at the same theater - a few days later with some friends, and it was framed properly.

I stand by what I said - I'm fairly certain this was never meant to be watched without the 1.85:1 matte.