Question: Who confirmed the date for filming the follow-up to Before Sunset?
About the article "Before Midnight (film)", section "Production".

Candidate passages:
After the first two weeks of "Ong Bak 2" theatrical release, the president of Sahamongkol Film announced their intention of a sequel.
Filming of new footage for the follow-up was to begin before the end of the year and was to incorporate unused footage from "Ong Bak 2". 
The filming of Usagi Drop took place started in a residential area of Kawasaki in Kanagawa Prefecture.
Filming started on 21 July 2010, ending the same month.
Director Sabu mentioned that the entire filming was done without a prepared script.
He had reportedly done that because he wanted to have a natural reaction from the actors.
The filming staff was told of this just before the production of the film began.
Mana Ashida and Ruiki Sato, who played the roles of Rin's kindergarten classmates, therefore did not have a prepared script to follow during shooting.
Instead, they spent one month with the film's assistant director going through each and every scene in detail before the actual filming.
A video of the filming showed that actor Kenichi Matsuyama was like a "natural parent" to fellow child actress Mana Ashida.
In a scene where they were shopping at a department store, Kenichi looked peaceful while choosing bags and shoes for Mana Ashida. 
Mediaset Spain acquired the rights of the franchise back in 2011 after the success of the US counterpart.
Initially it was expected to air on Cuatro, but in November 2011 Mediaset confirmed the show would premiere on the group’s main channel instead in spring 2012.
Later, in February 2012 the air date was moved to fall 2012 and Jesús Vázquez, who had previous experience presenting talent shows like "Popstars" and "Operación Triunfo", was confirmed as host.
The names of the four coaches were confirmed by February 2012: David Bisbal, Malú, Rosario Flores and Melendi.
Filming for the blind auditions stage of the competition began on 21 August 2012.
On 29 August 2012 it was made known that Tania Llasera would serve as the social networking correspondent.
The premiere, scheduled for 19 September 2012, was preceded two days before by a preview that aired simultaneously on all channels of the Mediaset Spain group. 
On May 11, 2008, one day before The CW's upfront presentations, the network officially picked up the series for the 2008–2009 television season.
Filming for the pilot began in early June in Los Angeles.
Torrance High School, which served as the high school in the original series was also used by the spin-off.
Filming for the series usually took place in numerous high schools in Torrance and El Segundo, although several scenes were filmed in Torrance High School because of its large auditorium.
Sachs returned to the school for the first time after graduating in 1979.
Judah announced that the Peach Pit would be back, but as a coffeehouse rather than a diner.
Other filming locations included the mansions of the Bel-Air neighborhood and the Hollywood night club Boulevard3.
One week prior to the pilot's broadcast, it was confirmed that filming was still taking place, as the producers wanted to reshoot scenes and add extra ones. 
The film is directed by Malcolm D. Lee and written by David Zucker.
Anna Faris, who starred in the previous films in the franchise, confirmed that she would not return for the fifth film.
Tisdale's involvement in the film was confirmed in June 2012.
Lohan and Sheen joined the cast in August 2012.
Terry Crews joined the cast on August 14, 2012.
Filming began in September 2012.
The first promotional image of the film, featuring Lohan and Sheen in the very first scene of the movie, was released on September 20, 2012.
The only actors from any of the previous installments to appear in this film are Sheen, Rex, Hammond, and Shannon.
They do not portray their original characters, Sheen stars as himself, Rex plays Dan, Shannon plays Heather, and Hammond plays a doctor.
The film was largely shot in and around Atlanta, Georgia in the fall of 2012, with additional filming January and February 2013 at Sunset Gower Studios in Los Angeles.
David Zucker reportedly handled additional filming and reshoots while Malcolm D. Lee was starting production for "The Best Man Holiday".