Ted Mills’s review published on Letterboxd :
Boilerplate origin story/enlightenment tale, but hoo-boy! the special effects are just ace. I've been grizzling for years about the wasted potential of "The Architect" character in "Inception" and the kaleidoscopic showdown at near the end of act three (of four) as New York refracts upon itself was just masterful, as was the various trips into multiuniverse dimensions, bringing back the best of 1960s psychedelic Marvel (Kirby and Ditko, et al). Some nice light humorous touches as well in the dialogue, and some moments of physical comedy too. Cumberbatch is a great choice in the lead. Also: not horrifically long.