I see that this is possible, but for some reason I can’t seem to find out how to actually render a film clip. Here are the details:
- Film is from Halo: Reach
- Film was created by someone else
Can anyone help me out here?
I own a site for this very purpose. You can register here and submit a request and we’ll get the clip to you! 
You can’t render anything, what you see is a rendered film from when bungie had the stats.