Greg Luce found it about four or five years ago. Along with COUPLES ONLY, another 50s SF pilot with Peter Lorre, and the German space film MOON WOLF, it's one of numerous gems which he has uncovered over the years.

Although Sinister unfortunately missed the DVD bandwagon, probably partially the result of the glutting of the market with cheap, slipshod discs of PD films, many of which Greg Luce put out first on VHS, it's still an invaluable resource for both well-known classics and obscure gems.