A couple of weeks ago I made the mistake of signing up for Letterboxd, which means I spent a couple of days furiously adding all the movies I’ve ever watched. The bulk of it is done, but occasionally I still get a flash of one I’ve missed, and I’m sure more are coming. This link is to the list of movies I’ve seen in theaters. I think it’s pretty accurate.
Movies I’ve watched in theaters
https://letterboxd.com/antiorario/list/watched-in-a-theater/