Heidi (1974) Japanese anime series by Zuiyo Eizo (now Nippon Animation) based on the Swiss novel Heidi's Years of Wandering and Learning by Johanna Spyri (1880). It was directed by Isao Takahata A feature-length film Heidi in the Mountains, aka The Story of Heidi, was edited from the series by Zuiyo (which by then was a separate entity from Nippon Animation, which employed many of the TV series' animation staff) distributed in 1979. All cast were replaced excluding Heidi and the grandfather. This movie is also the only incarnation of the Heidi anime to have been released commercially in the United States in English (on home video in the 1980s). Isao Takahata remarked "Neither Hayao Miyazaki nor I are completely related to any shortening version" on this work.

Heidi leaves her beloved Alm and moves to Frankfurt, where she finds a new good friend in Clara. Aunt Dete wants Heidi to leave her grandfather on the mountain pasture and go with her to Frankfurt, where she is supposed to live with the Sesemann family and keep their paralyzed daughter Clara company. In this way, Heidi would enjoy an excellent upbringing and grow up with one of the richest families in Frankfurt. Aunt Dete sees a bright future for Heidi in the city. However, this idea is not met with enthusiasm by Heidi and her grandfather, Peter and his grandmother are also very reluctant to let Heidi go. After much persuasion and many promises from Aunt Dete, Heidi finally leaves her beloved mountain world with a heavy heart and travels to Frankfurt.

Heidi (1974) Japanese anime series by Zuiyo Eizo. It was directed by Isao Takahata, has been dubbed into many languages. The TV series was directed also in Italy, has been distributed in 1978. After divided also in three feature films, Heidi a scuola (1977), Heidi in città (1978), Heidi torna tra i monti (1979), produced by Beta Film and Riccardo Billi and distributed by Sampaolo Film. The third feature, Heidi torna tra i monti, summarizes the latest episodes of the television series. Heidi finally back from his grandfather, but continues to maintain the friendship at a distance with Clara. Which, precisely during a visit to the girl initially hampered by Mrs. Rottenmeier, on this occasion will resume the use of his legs.