I really enjoyed this one too. It's a complete mindfuck that doesn't make a whole lot of sense most of the time, but they really nailed the 70's vibe.
I've only seen it once though, so perhaps elements of the plot make more sense on repeat viewings. I'd definitely watch it again.
"The machines are faster and the bombs are worse, as we're all sucked into this unholy curse." - Saint Vitus - War Is Our Destiny