Kids and young people are generally considered to be weak, innocent and in need of protection by an adult, but sometimes kids are tough enough to defend themselves. Saoirse Ronan plays a skilled teenage assassin in "Hanna," opening April 8, but there have been several other kick-ass kids who have come before her. Click through to see which pop culture kids and teens would be worthy opponents in a fight.
Role: Hanna in "Hanna"
Butt-kicking abilities: This is a 16-year-old you don't want to mess with. Hanna has been trained as a CIA-level assassin by her father, and she doesn't necessarily need a gun to do some serious physical damage.