Garage, total failure PURCHASE

I thought so a tank film I could well do, since my phone always is the screen as the first broken.
I bought a silicone sleeve and this film to protect.
The film has held Original 2 weeks later my phone fell down on is (on a corner not on the screen), and the film was cracked across.
In addition, the film had an error because I had as I "fixed" on my phone a bubble has emerged, but there was no dust and nothing underneath. When I reflected the phone with the slide in the sun, I noticed that she had a pressure point on the inside ...