Complex sentence: The following year, Domoto acted in a movie "Fantastipo" with fellow Johnny's personality Taichi Kokubun, and also pairing as Toraji Haiji to release the theme song for the movie.
Split into simpler sentences: The following year, Domoto acted in a movie, "Fantastipo", with fellow Johnny's personality Taichi Kokubun. He paired with Toraji Haiji to release the theme song for the movie.