In most action movies

1. Bulletproof vests are magical force fields.
2. Shotguns make you fly.
3. Gunshot wounds to the arms, hands, feet, shoulders, or legs are not that serious.
4. "Clips"
5. Poor trigger discipline
6. Poor handgun grips
7. Dual wielding anything is more effective.
8. Richocet sparks (sometimes on wood)
9. Unlimited ammo with no magazines
10. Shooting from the hip with machines guns or rifles.
11. Suppressors on weapons make them completely silent.