If you enjoyed Mystery Science Theater back in the day, you'll be happy to know that those same guys are still in business. They now have a website called Rifftrax (warning: site has autoplay) where you can download their commentary on a wide variety of popular films.
They've recently started allowing fans to create and sell their own spoofs. The Dug and his pals jumped at the opportunity and have mocked 2 short films. They operate under the name Team Swizzlebeef and their latest offering is in my totally unbiased opinion, hilarious. Seriously, though, it's really damn funny. You can find it here.
Also, here's why you will never catch me anywhere near a theater that's showing the new Transformers. Warning: massive spoilers, but does anyone care? Thanks to Doug for the link.