Synchronicity is an interesting movie that makes you think. I've seen others movies on the subject of time-travel but few that goes that deep into the subject and explaining it that well.
It's by no mean an easy movie to understand as a whole plot-wise because of the whole time-travel paradox , but it actually illustrate the complexity of it in a very elegant and subtle manner without too many shortcuts.
The movie has its flaws however,some of the plot devices related to the time-travel paradox seemed a little bit too convenient in my opinion, and the ending could have been better. But as a whole I liked the story even though I didn't understand all the details involved. There is also a nice little love story which actually fitted quite well in the overall plot.
The cyberpunk setting wasn't a bad idea for the movie, but I wished they had been a bit more subtle about it. Some of the scenes of the movies were almost screaming "We bloody love Blade Runner" at us. I still liked the style and music but I think it was a bit overdone.
Apart from Ironside all the actors are refreshingly unknown, and do a very good job given the complex story they play.I liked the characters which were both human and interesting.
Synchronicity's story is by no mean easy to grasp , but I enjoyed it. It wasn't overly complicated but still gave me something to think about after watching it. I recommend this movie if you're in the mood for a bit more serious scifi.