日本前首相小泉纯一郎在日本动画片奥特曼的剧场版、代表日本的英雄题材电影《大怪兽之战 Ultrarunners银河传说》(日文原文：大怪獣バトル ウルトラ银河伝説)中担任配音。据说这是小泉纯一郎的次子小泉进次郎的建议。

小泉纯一郎在奥特曼中为奥特曼长老一角色配音。场景是在众奥特曼战士前发表热烈演讲。演讲内容为“为了帮助弱者我们今后还要继续战斗！重新站起来吧，光之国的勇士们，为了正义与和平，为了浩瀚的全宇宙……”导演要求这段话要说得强有力、充满说服力，要让人们以为小泉纯一郎要“重出政坛”。小泉也不负导演期望，在9月中旬的录音工作中他的配音受到了“绝赞”。

Former Prime Minister Junichiro Koizumi, 67, has agreed to be the voice of Ultraman King in “Mega Monster Battle - Ultra Galaxy Legend: The Movie,” after his son and first-term House of Representatives member Shinjiro Koizumi, 28, urged him to accept the part.

The role is the first of its kind for Koizumi and he initially refused, but Shinjiro, a big fan of the Ultraman series, called him to say he should do it - that it was just his voice and he didn’t have to act or anything in the movie. Koizumi recalled memories of watching the show with Shinjiro and his eldest son Kotaro, 31, and he agreed to take the job.

He began voice recording last month, with staff in the studio saying he was impressive and that they were reminded of his grand speeches during his career as a politician. One of his lines read: “We have to continue the fight, and support the weak. Rise again, warriors of the Land of Light. For peace and justice! For all the universe!”

His character Ultraman King is considered to be the god or elder of all Ultra heroes, with a height of 58 meters and a top flight speed of Mach 10. He lives on his own on the King Planet, and is said to be 300,000 years old.

Koizumi said he was looking forward to watching the finished product and lauded it for being something all generations of the family can enjoy.

“Ultra Galaxy Legend: The Movie” opens in cinemas on Dec 12.