Good concept, poorly executed.

I cannot think of one single thing that I would change about this film. The acting is incomparable, the directing deft, and the writing poignantly brilliant.

The film makes a home in your brain and the only cure is to see it again.

As somebody who had not heard any of this before, it became a curious phenomenon to sit and watch a film and slowly have the realities begin to click into place.

Tight directing, spectacular music, good acting, fluid plot what else could you ask from a movie? Well you get even more than that. I reraly give a 10 score to a movie and i have watched thousands. Please allow yourself to watch an incredible movie and propably one of the best in the recent years. Kudos to the guy who wrote and directed that gem.

The plot twist was evident ever since the guy wanted to give him the implant. The acting was bad but the action was worth the watch. But if you didn't realize the twist within the first 10m then you a) are not very smart or b) don't watch many movies. Big Spoiler: I was hoping at the end it would of just left him in the hospital with the wife without cutting back to him; I like those open endings; where you're not sure if he went insane or if it was all a dream; this is probably the worst part of the movie; the movie feels it needs to explain everything; yet it tries to act like the explanations are unfounded; when they were very obvious.

Surprised.. amazed and dazzled are some of the words come to your mind...It's been ages I am watching Sci-Fi flick and once a while you come across movie like Upgrade...It's upgraded thinking .. upgraded action and upgraded plot...The next gen of six-fi action and well excuted in a small budget.. The opening credentials gives you montage of a big budget movie and it keeps it that way till the end..Just watch it so they continue making such amazing movies.

I am a fan of Leigh Whannell's movies, such as Saw and Insidious, so I had high expectations for this movie. After the movie ended I sat for some time trying to find a flaw in the script that would dismiss such a grim outcome as unrealistic. I couldn't find any. It is a pretty hard original science fiction. Stanley Kubrick level or a less spectacular, lower budget Christopher Nolan masterpiece. It does not continue the trend of the past century where beautiful/monstrous sparkling cans are taking over the world through brute force. It sets a new modern trend of the future where aging and obsolete information security is the only guard against the machines that need but an access key to take over the world. The world that they already operate, but don't own yet. In fact, it might have gone too much into technical details. Like The Matrix, but without a beautiful facade to connect to a non-tech-savvy audience, without Morpheus to explain it all in plain English. But I will not take any stars away for it being too tech-heavy. And if someone feels like it is, you better catch up and keep up, or we may find some of the predictions this movie makes come true.