I'm a big fan of underground films, and I had heard a buzz on this one from a friend who saw it at some film festival. I have to admit, this little flick is better and more original than the majority of big budget blockbusters that have unlimited resources out there.
I keep seeing this sort of concept rehashed in current movies. Most recently, it was the "Butterfly Effect" and before that "Final Destination" that flirted with this plot line. From what little info there is on the net about this movie, it seems that Feedback was conceived and shot way before these others. That scores points with me - it's just cool to see an indie production being one step ahead of Hollywood.
As an aspiring filmmaker myself, I really was impressed with the level of production on this film. I'm not sure what the budget was, but my guess is that it was a "maxing out a credit card" affair, like Kevin Smith did with Clerks. And for whatever they paid for this movie, they got solid production and pretty decent acting in return. What really struck me as good was the soundtrack work. Lots of Ministry meets Nine Inch Nails techno laden stomps, but then the instruments know when to quiet down during the more dramatic moments. That was impressive. Also, the "real punch" sound effects made my stomach churn. I could feel the fists hitting flesh!
I also really liked the low tech approach, on the whole. I mean, this movie throws out the big retarded effects. Geez, the "flux capacitor" is replaced with a phone so huge, it looks like a joke someone picked up from some 70 year old grandma's garage sale! Seriously, I like this low-fi approach, and halfway wish Hollywood would focus on the script (for once) and not on spending money aimlessly.
Feedback is solid. I thought it was worth the time.