The cover is misleading, Jesse Eisenberg, is barely in this film. My assumption based on the rest of the movie is that they blew nearly all their budget on getting Jesse Eisenberg to do a 5 minute shot at the beginning of the film, and a 5 second flashback (same footage), followed by a 15 second shot.
The rest of the film was pretty much a train wreck. I kept watching the movie waiting for the "horror". I could have just watched the trailer again, because that's nearly all of the horror in the film. Well if you don't count watching the film itself a "horror".