First of all, of course it's fake.
The biggest flaw is the interface itself. A full 20 years ago, when Johnny Mnemonic (the movie, not the short story) came out, and I saw Keanu Reeves using that VR internet type access, I knew that those interfaces would never work in the real world. I'm sitting here browsing the internet, typing this message, etc, by moving my fingers maybe an inch most. We are currently stuck having to do physical interactions to interface with a digital world. As long as we are stuck using this kind of interfacing (IE it's not plugged directly into our mind), then the less physical effort is required to interface, the more efficient, faster, accessible, and convenient computers will be to access.
Really, I'm going to lift my arm up to head level, and make a huge gesture like I'm pulling laundry out of the washing machine, to look at a message? LOL Suuuuuure. Anyway, you can spot it in a minute when these interfaces are generated by animators / artists / movie effects people, because they could never gain widespread usage when the majority of people would be fatigued after a mere 10 minutes using such a system. Kind of like every movie with a computer makes beeps and blips every time you interact with any widget, which in reality would drive the average human out of their mind in exactly 20 minutes. Yeah, looks cool as a prop, but annoying in real life.
Oh, and I like the way that gun somehow turns into an actual prop in that guy's hands. They've invented a transporter and holodeck to go along with their VR headset apparently.