You must not work in PR. This story has been at the forefront of the news cycle for awhile now, and it's probably a super forgettable film.
On the other hand, I still can't imagine they would be dumb enough to fake this, considering they opened an FBI investigation and there were threats of physical violence. The risk to reward just doesn't make any sense.
There's a possibility that showing The Interview on YouTube and other sites will result in online streaming becoming a huge runaway revenue success. But that's a huge gamble to make, especially when the movie is scoring just a 54% on Rotten Tomatoes.