Is there a way for us to view our Halo 3 file shares (movies) on PC?
You can see your file share by going to Bungie’s Halo 3 archive (well the fileshare as it was of March 31st, 2012) such as here Bungie.net
But no, you can’t watch the films on your computer. There’s other ways like using a capture card obviously and there used to be bungie pro, but no free ways. (unless someone else captures the clip for you)