June 17 and 18th in RL and SL... I think everyone knows what this it. The link to the offical site is here: http://mmif.wordpress.com/ or direct here: MMIFHere.
This annual event is not a competition but a way to share machinima with a global community from all 3d virtual world platforms, video games, etc. It is fun to watch and be a part of in SL, and I'm sure even more so for those who can attend the RL portion of events.