Waiting For Guffman (1996)
Christopher Guest is responsible for some of the greatest mockumentary films of all time like This Is Spinal Tap, Best In Show, and Waiting For Guffman, a 1996 film about a small town in Missouri that thinks they found the perfect way to celebrate their 150th anniversary. Like everything else created by Guest, this one is full of laughs and an all-star cast.
Steam it here.