There are many existing comments in regards to this particular film and most of them are quite similar and accurate, therefore there is not too much new substantial information left to be offered. I would just like to express and confirm that this is quite an excellent film for its time . Do not expect CGI quality graphics and effects — this was a lower budgeted film, but it did indeed have some very nicely done SFX by its own standards. The wonderful screenplay, rather strong acting [HUGH MARLOWE, ROD TAYLOR, etc.], Color-Cinemascope production, and a fair amount of actual outside location shooting [no cheap soundstaging] combined to make this an absolutely wonderful film [still ranks as one of my favorite 50’s Sc-Fi-Flix today!]. OK – for you meticulous purists, there is a large RUBBER SPIDER attack … but it actually looks fairly decent. Try not to nit-pick, sit back and enjoy a really tight film.