6. Juror No. 8 - 12 Angry Men
The Hero: In a room full of apathetic men who just want to escape the heat, it's Juror No. 8 who steps up to the plate and decide to gives them all an education in fairness. 8 spends most of the movie questioning every slice of evidence brought forward by the prosecution, and even takes matters into his own hands by going out and buying a knife that's almost identical to the murder weapon (to prove it wasn't as unique as they all thought). Eventually 8 manages to sway the other 11 towards a non-guilty verdict, and has been deemed a hero by society ever since.
Jail? You Can't Be Serious? I am serious. Totally serious. Because, as any lawyer (or person who happens to know this) will know, members of the jury aren't allowed to take it upon themselves to conduct investigations. The moment that Juror No. 8 decides he's better than everyone else and goes out and purchases that knife like some amateur Philip Marlowe, the whole thing becomes a mistrial. Luckily for 8, none of the other men decide to report him, presumably because they're sick and tired of listening to the guy talk, and because they want to get outta there before he starts making them look even dumber than he already has.
Recommended Sentence: 3 days (with parole)