Stars Make Viral Video About Making a Viral Video

To promote their upcoming flick Tropic Thunder, Robert Downey Jr., Jack Black, and Ben Stiller produced this hysterical clip for the MTV Movie Awards. So why am I posting it now? Because I didn't know about it last weekend and because it features Jack Black having his crotch assaulted again and again and again! See for yourself after the jump!

[via OhNoTheyDidn't]