By way of reader Jeff who spotted this at a G subway station: Someone defaced a poster for the movie version of The Producers. But it wasn't the usual crude remark or drawing. It actually necessitated a knowledge of the theater. Written on Uma Thurman's Ulla dress is "William Ivey Long is the most overrated costume designer in Broadway history." Google "William Ivey Long" and you get this Internet Broadway Database entry with a long list of credits, including designing the costumes for Guys and Dolls, this year's La Cage Aux Folles, Cabaret (revival), Chicago (revival), 1776, and, yes, The Producers. You learn something everyday!
Other fun signage musings: The Bubble Project. And got a fun picture? Email it to firstname.lastname@example.org or tag it on Flickr with "Gothamist."