I remember reading them back in the early 90s (Robin Hood: Prince of Thieves, Far and Away, Back to the Future). They don’t seem to be a thing anymore (or am I just not noticing them).
As an aside I remember liking them but I was a preteen at the time so maybe they were terrible and I just liked the movies.
There was one for Million Ways to Die in the West, written by Seth MacFarlane himself. He’s a pretty decent writer, and there’s a few scenes that weren’t in the final film.