For my complete review, as well as reviews of each selection, please visit Casual Debris.
Of the two titles the anthology has appeared under, Space Movies is by far the most appropriate. Haining's focus in both the selections and the introductory material is on film, more specifically on special effects, and not on the related literature. While the anthology collects a few short stories that have been adapted to the big screen, it also contains some "fictionalizations" of scripts for both film and television, as well as a script treatment. There is an introduction by Haining, "The Fiction of Possibilities," that discusses the early evolution of special effects, and each story has its own mini intro, focusing primarily on the film the selection is highlighting. The introductions are interesting though not revolutionary.
There is also fault with both titles: Space Movies and Classic Science Fiction. For one not all the movies are set in space, and for another not all are science fiction. The last entries, those by King and Barker, are both horror fantasy, supernatural tales that have absolutely no science fiction elements, and while the film linked to the King story is certainly science fiction, the film linked to Barker's story certainly is not.