From NetFlix:

Joseph Gordon-Levitt stars as a New York City bike messenger whose routine “premium rush” run turns into a life or death chase through the streets of Manhattan after a dirty cop (Michael Shannon) becomes desperate to get his hands on the package.

Basically this is an adolescent action film with a plot that fails to be important. Cars chase bikes. Bikes chase bikes. That’s pretty much the content of the film.

HOWEVER, the bike riding scenes and skills were amazing. The Wikipedia article does not discuss how real the bike riding was, although I would be disappointed if it were not real. No doubt some professional stunt rider did at least some of the scenes. But that Wikipedia article did included the following:

Gordon-Levitt was injured during filming on August 1, 2010, when he was cycling too fast and hit the back of a taxi. The impact sent Gordon-Levitt flying into the rear windshield of the taxi, slashing his arm which required 31 stitches. A shot of the aftermath of that accident is included as a scene during the credits of the film. Locations included Columbia University, Central Park and Canal Street.

One very clever device is as follows: Willee (our hero) sends us on many fast and perilous rides in New York City. He must continually make split second decisions about where to aim his bike. At certain points in the film he is about to make such a decision and the action changes to Willee’s mental practice run-through of what would happen if he make a particular choice. Clever fun!

Joseph Gordon-Levitt (Willee) plays Robert Lincoln in “Lincoln”. You may recall Michael Shannon (the bent cop) as the tormented Curtis in “Take Shelter”.

Just enjoy the superficial film with its fun bike stunts.