Indiana Jones

I started watching the new Indiana Jones movie, Kingdom of the Crystal Skull. It probably would have been OK to have finished, but I have other things to do.
It starts out some Russians are forcing Indy to find an item in a warehouse. He claims that the item is magnetic. He then starts talking about needing gun powder. They pour some out of a grenade. He throws it in the air and it goes floating through the air in the direction of the box. The get close and he claims to need shotgun shells. A Russian solider racks the action on his shotgun a couple times neatly landing several cartridges into a hat. The metal base of the shells are removed with a pliers, and shot comes out. He then throws the shot and it is attracted to the box.
1. Don’t grenades use high explosive?
2. There is no way that gun powder responds to magnetism.
3. Even if gun powder did respond to magnetism, it would not move towards the source of the magnetism all the way across a huge warehouse.
4. Since when is the shot in the back of the shotgun shell?
5. How did they break the brass away from the plastic so cleanly?
6. When did lead become magnetic? Or when did the Russians start using steel shot?


I used to love these movies as a kid. Now I am disappointed, this movie reached back and destroyed part of my childhood.