^ True, it does seem odd someone would have a copy already, but he certainly seems to know a lot about the film as in, it wasn't a vague "Oh, its good" review, so I'm having a hard time doubting that there might've been a prerelease for a few people. Studios do pre-releases to audiences so its not uncommon to get an early look at something to make some noise online about it.
Until he's proven wrong, I'd say its legitimate (or seems so).