I have to admit, I actually got the two films confused in my head and I was originally expecting an action film. Actually, I think I did better by watching Trance. This is about an art auctioneer called Simon who gets mixed up with a criminal gang. He teams up with them to help steal a painting worth $30m, but betrays the gang leader at the last minute. He's injured in the scrap, and ends up losing a lot of his memory, meaning he can't remember where he hid the stolen painting. The gang force him to see a hypnotist to help him remember.
That's really all I can tell you about Trance without giving you spoilers, and I promise you I won't do that.
Once the hypnotist was introduced, I knew this would be a film that would mess with my head. I started to question what was real, and even what order events were taking place. In fact, to be completely honest, at one point I almost wanted to give up. I'd got myself so confused, and I could feel a big reveal was about to take place but I figured it would make me more confused. In fact, it really cleared things up and I was so glad I stuck it out. It doesn't surprise me that you were confused ;-)
Trance also reminded me just how great of an actor James McAvoy is. I haven't seen much of his work, and in fact, the first thing I ever saw him in was Shameless! I'm making a mental note though to watch more of him, maybe Welcome to the Punch should be next! See above!!
This was nearly a 9 from me, but I'm still not sure I understand the very last scene, and I don't think it has much replay value. Still a fantastic film though!