One of my favorite films of the last 10 years. Not "the best", just a favorite. I thought Sarah Snook and Ethan Hawke made great leads and had fantastic chemistry.

Not overly confusing but Timecrimes was a bit of a headmelt at the time
While I didn't "enjoy" Timecrimes as much as I wanted to (because I really disliked the main character), it is really technically sound.

Triangle
Primer
Upstream Color
The Endless
Enemy
Pi
The Signal
The One I Love
Donnie Darko
Holy Motors
Under the Skin
The Holy Mountain
Yours was a great list, and the ones above are those I particularly like. Triangle is really great.

I'd also add:

The Prestige
Black Swan
A Cure for Wellness
Dark City
Frailty
The Double
Arrival
Cloud Atlas
The Blackcoat's Daughter
You Might Be the Killer
Marjorie Prime
Clean, Shaven