No, it's rubbish
Rubbish?! Hardly...
It's a pretty decent film despite some flaws along the way.
I thought there may have been a little more to it than just a mix of Quantum Leap and The Matrix, but there isn't. The two lead characters weren't endearing enough to make you care about the love story which became mind numbing, I didn't really care for the euthanasia angle in the story towards the end or the guy contacting his father, and the 'twist' (I use the term very lightly) was a terrible anti-climax.
It was shot well though considering the majority is on the train (why don't we have double-decker trains here?), and the performances were ok save for maybe the military women and the professor bloke who was about as wooden as my dining table. A 4 pushing a 5/10 for me, average at best. Admittedly I probably set my expectations a little high though, thanks to Moon, so came away feeling incredibly underwhelmed.