I don't think there is any way currently to add a summary screen for movies, something I am hoping for too..
As the the blowout, from what I understand is that you wish them not to be selectable, I don't think this is possible either because no matter which expression you use to build your view, it will be selectable.. Another solution would be to replace the zero length marker files with ones that show a couple of seconds of a black screen, so then you wouldn't get this blowout if you accidentally select them.
Finding out which drives the movies are on you could build a view with 2 categories the first one being mid([Filename (Path)],0,1) & the second being [Name] (The mid expression just pulls the first letter from the filename path being the drive letter)
This would split up your movies by drive though if you still wished them all to appear on the same view you could opt for something like this
One category, using an expression along the lines of
<font color="mid([Filename (Path)],0,1)00000">[Name]<//font> (For this to work you couldn't have an external hard drive letter above F for it to work" I would fiddle around with the hex number to get something that looks nice) (This might not work in webgizmo or gizmo, I haven't tried myself but I do remember a recent update saying html tokens can be used in most areas of the program, so it might be worth a try)
hope this helps