Please take a look at the videos listed here. They demonstrate the difference between "with film and without" better than any words can express. Even the 100 Micron Film, which is primarily a safety film rather than a Blast Mitigation Film, makes a big difference.
Blast Test with no window film.
Blast Test, 200 Micron
Clear-4 Side Wet Fix.
Blast Test, 100 Micron Clear.
Please note that these videos are listed here with the permission of Bekaert Speciality Films who supply us with 90% of our materials.