Based on "No Food for Thought", a half-hour episode of TV's Science Fiction Theater, Tarantula is one of the best of the "giant insect" sci-fiers of the 1950s (it runs a very close second to Them!) The film's… More Based on "No Food for Thought", a half-hour episode of TV's Science Fiction Theater, Tarantula is one of the best of the "giant insect" sci-fiers of the 1950s (it runs a very close second to Them!) The film's central character is Dr. Deemer (Leo G. Carroll), whose experiments with an artifical nutrient designed to feed the world's starving millions results in some unfortune side effects. Before long, Deemer has developed a lab-full of giant, voracious animals and insects, not to mention a creepy-looking tarantula. When Deemer's lab assistant Lund (Eddie Parker), who has become hideously deformed as a result of Deemer's experimentation, tears the lab apart in a lunatic rampage, the tarantuala, escapes into the desert, growing larger with every passing minute. By the time Dr. Matt Hastings (the inevitable John Agar) and lab tech "Steve" Clayton (Mara Corday) are able to inform the authorities, the tarantuala has grown to awesome proportions. It is up to the air force--led by a young Clint Eastwood!--to destroy the humongous spider before it's too late. Though its continuity is a bit hazy (the result of post-production tinkering), Tarantula remains exciting and credible throughout, enhanced by the impressive special-effects work of Universal-International artisan David S. Horsely.