We can't wait to meet the unintentionally hilarious (audio NSFW) "World's Angriest R.V. Salesman" Jack Rebney at the 7:15 Saturday screening of the fourth annual Found Footage Festival! We are promised answers to the following questions: "What does he think of his unintentional cult status? Where has he been? Why was he so angry? And is he going to go off on us?" We'll let you know what happens. All weekend, the festival will......