Can somebody watch this and tell me if it is super awesome? I am in the library and left my headphones at home. :(

A friend posted this on Facebook and I GOTS TO KNOW. I luuurve Joss Whedon. Evidently the good stuff is around the 6 minute mark.

ETA: We have had an extensive discussion in the comments on whether or not Meryl Streep is a Browncoat. I am pleased to announce I HAVE DEFINITIVE PROOF: