But I have to inform you there are minor SPOILERS.
Damn this film is so retarded it is funny.
It is well made and interesting to watch as action film. But plot holes are so dumb it stops making any sense. It is like bioshock infinite game but more confusing. Sometimes I don't understand in which timeline they are. At first they move backwards and later they use those portal like time machine and simply go back in time.
And then you realize backward timeline is silly if you can simply just go back in time.
Moreover, they use gas masks to breath in different timeline and then they just stop using masks. The twilight guy who was inverted in the end simply behaves and speaks properly and stops using mask. Also where does the debeky go in the end? Back in to her timeline? And how come phones works in different time periods? Are they advanced phones from future?
It would be nice film but over9000 plot holes with time travel ruin it. Still would advice to watch.