 The events of " Space Seed " are followed up in the 1982 film Star Trek II : The Wrath of Khan . Harve Bennett was hired to produce a sequel to Star Trek : The Motion Picture having never seen the television series ; he therefore watched every episode in preparation and latched onto Khan from " Space Seed " as the compelling villain he considered to be lacking from the first film . In resuming the role of Khan , Montalbán worried that fans would see him only as Mr. Roarke from Fantasy Island but felt that he managed to recapture the character after re @-@ watching " Space Seed " . The film set a record for the opening weekend gross of $ 14 @.@ 3 million , and went on to take $ 78 @.@ 9 million domestically within the United States , making it the sixth best @-@ selling film of the year . 
