A rare Monster of the Day two-fer. Willis O’Brien, the special effects genius behind the original The Lost World and King Kong, oversaw the slick and supple stop-motion effects sequences in this otherwise standard big bug flick. (Which naturally completely aped Them!, to the point of copying the extended ‘mystery’ element, despite the fact that the ‘mystery’ monster was named in the title.)
However, the producers decided to include another, not at all matching face for numerous close-up inserts, and thus the grossly drooling visage in the second shot. Still, it’s a very nice piece of modeling, and it does have a lot of personality, so I’m all for it.