The press reading for this years movie
Extremespeed Genesect: The Awakening of Mewtwo (神速のゲノセクト ミュウツー覚醒) took place on June 11th, 2013. In attendance was
Shoko Nakagawa (中川翔子) who voices Nymphia, Kōichi Yamadera (山寺宏一) who voices Red Genesect, Reiko Takashima (高島礼子) who voices Mewtwo, former AKB48 member Atsuko Maeda (前田敦子), who provides the narration for the Pikachu short, and
Heisei Nobushi Kobushi (平成ノブシコブシ) group members Takashi Yoshimura (吉村崇) and Kenta Tokui (徳井健太) who voice Eric (エリック) and Ishitsubute (イシツブテ) respectively.
Photos from the press reading can be found in our imageboard thread.
Sources:
http://www.oricon.co.jp/news/confidence/2025502/full/ and
http://natalie.mu/owarai/news/92542