Suicide

Suicide is the willful act of taking one's own life. In film, characters may commit suicide for any number of reasons ranging from terminal illness, depression, impending trauma, they are forced into it, and sometimes, even to prevent one's self from being turned into a zombie! Suicide is different from self sacrifice, which is where a character allows themselves to die in order to facilitate a greater good, whether that be protecting a loved one, saving a military unit, or defending the entire planet.