Like other reviewers I too can find on my Lumia 925 no curvature on the screen that could cause you aware the film was designed to be small and thus not the entire display is protected :-(
After I have my smartphone freed eeendlich of this film, the Lumia feels back to top!
I prefer to forego such protection and "enjoy" the velvety original display of the Lumia 925, on which the finger just so over it and slide the liquid work is fun.