This is a very ambitious movie.
In fact, from my point of view, too ambitious. This film reminds me of the lead character's father (Denzel's) film "Dejavu" on steroids 2.0.
It holds your interest, however, with all the moving parts, at times, it becomes just too much noise in the system.
What could have been a very sophisticated journey, turns into in the words of The Wizard of Oz, (1939), "a clinking, clanking, clattering, collection of caliginous junk."