In 1981, he was the writer and producer of the adventure film Savage Harvest.
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The compound was also used as location for shows such as Daktari and even an episode of Star Trek "Shore Leave".
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Ralph Helfer bought out Marine World in 1972 when it went bankrupt and added a wildlife park and "jungle theater", renaming the park as Marine World/Africa U.S.A. This park was the predecessor of Six Flags Discovery Kingdom.
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Tana Helfer played the role of Kristie in Savage Harvest and was the subject of the book When you fight the tiger by Joan Hewett (Little, Brown and Company - 1984 - ISBN 0-316-35956-4).
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He also was a partner and chairman in a small Buena Park, California, theme park called Enchanted Village which was built on the site of the defunct Japanese Village and Deer Park amusement attraction.
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