I had the armourfend kit fitted to my FocusRS before I picked it up.
The edges show up quite clearly if you don't clean the polish off when you apply it. So I have spent many a time with a cotton bud cleaning it off.
I think it has saved the paintwork from chips, as I only have one, which just happens to be further up the bonnet than the film extends.
I believe that Armourfend do most modern cars, and you can buy it as a kit, but it is quite difficult to apply, which is why I paid for it to be done.
Here is their web page, but it is based in the US. The UK arm is in Essex.
http://www.armourfend.com/
Regards
Mark