Chilling final 'Joker' trailer reveals tragic backstory and more

What makes a villain as memorable as the Joker? In Todd Phillips' origin story for the notorious DC villain, Joaquin Phoenix plays Arthur Fleck, a clown, comedian, and, eventually – a Joker. In the final trailer for the origin-story-we-didn't-want-after-Suicide-Squad-but-are-now-most-definitely-seeing, Phoenix portrays Arthur's spiral into becoming one of Gotham's greatest criminal masterminds. We even see Arthur mocked by a late night host (Robert De Niro) before returning nonchalantly to the show as his new alter ego with the painted face. Joker hits theaters Oct. 4. Read more... More about Entertainment, Movies, Dc, Joaquin Phoenix, and Joker