These extras will be part of a crowd scene celebrating the birth of a new king. The main cast of the series, namely: So Okuno (Sougo Tokiwa/Kamen Rider Zi-O), Gaku Oshida (Geiz Myokoin/Kamen Rider Geiz), Shieri Ohata (Tsukuyomi), and Keisuke Watanabe (Woz/Kamen Rider Woz) will be on set for this scene. Those who are interested in becoming extras in the film can apply online from May 10 to May 12. Those chosen to be extras must wear summer clothing without any logos and does not feature any Kamen Rider images.
Kamen Rider Zi-O the Movie is set for a July 26th release in Japan.
[Source: Natalie via Daisuki Toku]