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In page Roger Corman:

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He continued to finance films for Filmgroup: Voyage to the Prehistoric Planet (1965), dubbing an old Soviet movie Planeta Bur into English with some additional footage shot by Curtis Harrington; Queen of Blood (1966), using some Soviet footage but a mostly new film, directed by Harrington; Blood Bath (1966), an adapted Yugoslavian film with additional footage shot by Stephanie Rothman and Jack Hill; Voyage to the Planet of Prehistoric Women (1967), yet another dubbed version of Planeta Bur with some additional footage shot by Corman's then-assistant Peter Bogdanovich.