Portal:Speculative fiction/Anniversaries/March/March 21

March 21:

Film releases
 * 1938 - Flash Gordon's Trip to Mars, a fifteen episode science fiction serial film
 * 1969 - Gamera vs. Guiron, a kaiju film, the fifth entry in the original Gamera series

Television series
 * 2003 - Farscape, an Australian-American dark science fiction television series, finishes airing on Nine Network and the Sci Fi Channel

Deaths
 * 1958 - Cyril M. Kornbluth (b. 1923), an American science fiction author and editor
 * 1959 - Edwin Balmer (b. 1883), an American science fiction and mystery writer