2009 Japan Day NYC - Today, May 31st! Food, Film, Music, and More
Today is Japan Day in New York City, and there are plenty of great events planned. The annual Japan Run four-mile race was held this morning, and that's just the start. The Japan Day festivities take place in Central Park (where the race was held).
There's music, film, food, theater, demonstrations of origami and calligraphy, family events, and much more, including "robot battles" and what's described as a "Hello Kitty photo op." And it's all free. Check out the official Japan Day NYC Web site for events and times. (The Japan Day site is experiencing heavy traffic, so you may have to keep trying to get on it.)
You can find a description of some of the Japan Day events at this listing from the NYC Parks Dept.

