Awesome! http://www.youtube.com/watch?v=h6G-MejeMG0&mode=related&search= And that looks like an attempt at a live action Grendizer movie! http://www.youtube.com/watch?v=IQcFfeX2gKw&mode=related&search=
The first link is kind of neat. I can see what they're suggesting with the intercutting, but I think they could have done a bit more overlay between Grendizer & Megatron. Also, maybe some sound effects would have added to the mix? I dunno, it was pretty neat. The second link? OHMAHGAW
I think a live action Grendizer movie would be the next best thing after a live action Transformers movie. EDIT : Seems it's an old fan project... Read more about it here. Still, it looks (looked?) pretty sick.