The Final “Joker” Trailer Is Here

The final trailer for "The Joker" starring Joaquin Phoenix has dropped. 

In the trailer, you see Phoenix as Arthur Fleck, a failed stand-up comic, staring out of the window of a train.

As the trailer goes on things start to take a turn for Arthur and you begin to see evolve into "The Joker." The film opens in theaters this October and is rated R. Check out the trailer below: