This year's 33rd issue of Shueisha's Weekly Shonen Jump magazine is announcing on Saturday that the upcoming new film adaptation of Akira Toriyama's Dragon Ball manga will be released on March 30.

The film will be directed by Masahiro Hosoda (Dragon Ball Z episode director, Nangoku Shounen Papuwa-kun) at Toei and written by Yūsuke Watanabe (live-action 20th Century Boys trilogy, Gantz, Bloody Monday, Future Diary), with Tadayoshi Yamamuro (Dragon Ball Movie 4: The Path to Power, Beet the Vandel Buster) acting as the lead animation director.

The announcement also features the URL www.dragonball2013.com, which currently redirects to a blank page on Toei's official website with the URL http://www.toei-anim.co.jp/movie/2013_dragonballz/.

In a comment printed alongside the announcement, Dragon Ball creator Akira Toriyama notes that the adaptation will mark the first time he has been so deeply involved in the production of an anime, in this case as early as the screenwriting stages. Toriyama also says that the film will retain the atmosphere of the original while adding small amounts of "modern flavor."

The announcement lists Fox International Productions Japan as a member of the film's production committee, alongside Shueisha, Fuji TV, Toei Animation, Bandai, and Bandai Namco Games.

The official website for the magazine had already opened a "D" teaser page with a countdown to a "surprise" on Saturday, July 14.

Update: More film details added.

Update 2: Details regarding film's production committee added. Thanks to Liam for the tip.

Update 3: The film's name is Dragon Ball Z: Battle of Gods (Dragon Ball Z: Kami to Kami)

Source: Manga News (link 2)