夏日大作戰
In Europe the DVD and Blu-ray was released on November 26, 2010, by Kazé. British distributor Manga Entertainment announced in January 2010 they had licensed "Summer Wars" for the United Kingdom, and was released in March 2011. In North America, Funimation released "Summer Wars" on DVD and Blu-ray on February 15, 2011. The North American DVD and Blu-ray releases included previews, and the interviews with Hosoda, Kamiki, Sakuraba, Fuji, Tanimura and Saitō. The first press copies included art cards. To get out enough copies to meet demand some did not ship with the OZ O-card (cardboard slip-cover), as it required specialty printing that takes longer to produce than the rest of the product. Funimation offered to send out the O-Card to customers who did not receive one as soon as they are available if they fill out a request form on their official website.