Related Clues:

• 'Mars Attacks!' genre
• This puzzle's theme
• Film genre
• Video category
• Bookstore section
• L. Ron Hubbard genre
• Video store section
• Literary genre
• Asimov's domain
• Hugo winner's field
• Fiction genre
• It may be filled with saucers and such
• Asimov's area
• Jules Verne milieu
• Tales of ET's, e.g.