Mad Men creator Matthew Weiner has reached out to New Yorkers over a historical inaccuracy in a recent episode of the show, branding the blunder a "terrible mistake". The drama hit headlines following a recent installment in which Christina Hendricks' character Joan reveals she has made reservations at famed Manhattan restaurant Le Cirque. The sixth season of the show is currently set in 1968, six years before Le Cirque opened in 1974. Weiner was quizzed about the error during a Paley Center for Media panel discussion in New York City on Tuesday night (23Apr13), and the director/producer initially blamed Hendricks for "ad-libbing" before admitting, "No, it was a terrible error... We make mistakes." Weiner added the show is just entertainment and is "not a history lesson". However, Le Cirque founder Sirio Maccioni has seen the funny side of the story and admits he is thrilled his restaurant was mentioned in the show, telling The Hollywood Reporter, "If I had known she (the character, Joan) wanted a reservation specifically at Le Cirque, I would have opened our French restaurant sooner! Honestly, we are happy to be mentioned in Mad Men." He has also invited Hendricks to dine at the eaterie, adding, "We will craft a special 1968-style French menu for her and her guests. My philosophy is that one must always give a lady what she wants. That never goes out of style."