Jeremy of The Daily Rotation wrote, "The Dark Tower may not be the best Stephen King adaptation, but it's a worthwhile summer blockbuster with a sci-fi twist and an eye for world-building. Also, Idris Elba's Gunslinger is a character that we absolutely need to see more of."
Kaam Chalu Hai Review: Based on true events, this movie is thought-provoking and inspiring
Rebel Moon Part 2 Review: This movie doesn't feel anything new or worth remembering, which is a shame.
Nekki has announced that the forthcoming gun fu game, SPINE, will receive a movie adaptation to expand the franchise.
I think the problem with the film was that it wasn't marketed correctly. This is a sequel to the series AND it is only the story of the Gunslinger (and some Wolves of the Calla) but that is all.
SPOILER:
It ends with a set up for the sequel. I saw it twice and it was better the second time.