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Ultraman: The Adventure Begins is a 1987 American-Japanese animated superhero film jointly produced by Hanna-Barbera Productions and Tsuburaya Productions and animated by both Studio Sign and Ashi Productions. It is the second foreign Ultra Series production overall, and the second foreign Ultraman film after The 6 Ultra Brothers vs. the Monster Army. Originally intended as a pilot for an animated series, no such series ever emerged and the pilot was made into a full-length film. It was broadcast on television in the United States on October 12, 1987, with a Japanese theatrical release following on April 28, 1989. The costumes based on the three main heroes were made for use in stage shows in Japan.