I feel silly even posting this because the image is so blurry it might make your eyes water. What you're no doubt attempting to look at is a shot from the filming of Spider-Man, featuring our first glimpse of the wallcrawler in action as he darts in between the cars. The shoot is taking place in LA, but since this is Spider-Man obviously it's just a stand-in for NYC. It's probably not even Andrew Garfield but a stunt double.
He's either chasing somebody down or he's playing a live-action game of Frogger. Thanks to On Location Vacations for the image!