Realistically, The Dark Tower franchise would probably be better suited to television, which could explore its world in much greater depth.
Ron Howard famously tried to turn The Dark Tower into a simultaneous movie and television franchise, but after years of development those plans went nowhere.
Idris Elba is still gunning for a sequel to The Dark Tower – despite the mixed reception the film has received so far.
The Dark Tower is based on the epic fantasy series from Stephen King, which follows The Gunslinger Roland on his quest to reach the titular tower.