Dude fair warning… Your mileage may vary, but to me the films are kinda of a pain to deal with on creams!
I applied them to my Cream switches (and they really help), the thing that’s annoying is the legs/teeth of the cream switch tops are so soft and flexible that the switch film is almost able to push the legs open enough to make the top come off… The film is almost like a built in switch top opener! 
I was able to fully snap them closed, but they seem to be handing on just barely. Fortunately, I am putting them into a fixed plate that doesn’t support switch top opening, so the plate will hold the teeth securely shut. Dang though, pretty funny!
I guess the POM that Cream tops are made of is significantly more flexy and soft than other switch tops I’m used to!
I don’t think I would use these particular films on cream switches if you’re doing a plateless build or you’re using a plate that supports switch top opening. You might find some of your switches coming apart during use or changing keycaps. If you have a nice fixed plate with no switch top opening you’ll be fine.
There might be other less stiff films you could use on creams to avoid this problem.