Not worth the watch.
Oh, Windigo, Windigo. You tried so hard but fell so short.
If the concept "a bunch of student filmmakers get caught up in a Slender Man horror story" sounds familiar, that's because a good chunk of this film is a Marble Hornets ripoff. That and trees. There's a lot of nature shots throughout the film. And what Marble Hornets did well, this film... doesn't.
The plot is an incomprehensible mess, the acting is wooden, the "fight" scenes are laughably fake, and the attempt at a scary twist ending is just silly. Roughly the first 40 minutes of the film adds nothing to the plot. It's kind of like the beginning of Cloverfield, except worse. The characters themselves are basically cardboard cutouts, they're all similar and there's really nothing to make us care about them, and the plot taking place in 2004 is an unnecessary point, not to mention that there's recent cars all over. Heck, Slendy's involvement in this is minimal, even more so than it should be for him. Why, exactly, he's even in this is a bit odd, as it seems like he's more-or-less a stand-in for another, more generic monster. Perhaps he needed the money for a new tie?
Not to mention the random faceless "zombies" at the end coming out of nowhere and making no sense. Besides being really narmy, all they do is provide a distraction from Slendy himself, who appears in the three worthwhile seconds of this film wherein he throws a truck and can be (vaguely) seen waving his tentacles about. Nice special effects, but it's the only enjoyable part of this entire film. The rest of the time it's hardly clear what's going on, and the random pacing makes this even more confusing. The end, which I alluded to earlier, features one of the characters being interrogated by police for some reason and something vague happens. I dunno if he's turning into another Slender Man or what, but it totally failed at being scary.
All in all, I give it half an Operator symbol out of five.
Oh, and what's with the comedic song being played during the credits of what's supposed to be a horror film? I mean, really?