Security film is good for glass doors. I tested some 8 mill film on some windows we replaced- put them in a enclosed trailer and threw bricks at them. The first impact broke the non filmed side, and made a divot in the other pane, it took several throws to break thorough and even then it was a ragged brick sized hole, rather than all the glass coming out. Much like a car windshield, though obviously not as tough.
Hanita was the brand.
http://hanitacoatings.com/films/US/products/safety-zone If you are not concerned about bump keying (and I really have no idea if this is a common attack or not) any good mid level dead bolt would probably be ok.
The common attacks seem to be-
Kicking the door hard enough to break the strike from the jamb,
Prying the door edge and jamb apart to release the bolt engagement,
or breaking a hole in the door or adjacent wall and reaching through to turn the bolt.
Reinforcing the strike and jamb fixes the first, having a stiffener in the wall on the jamb side corrects the second,
(I don't know why builders don't put a piece of 3/4" ply between the studs to create a shear panel at door edges, it also makes for a hard thing to punch through to get at the interior latch)
and having a strong thick door solves the last.