As he approaches his 85th birthday, Roger Corman is probably better known as the producer of some 400 exploitation films (and a few respectable ones!) than he is as a director, but he made some interesting pictures in his time. Many — like the set of three early Corman efforts that Shout! Factor is releasing this week in nice looking new transfers — are characterized by his unshakably sober approach to wildly improbable material: “The Attack of the Crab Monsters” and “Not of This Earth” (distributed as a double bill in 1957) and the 1958 “War of the Satellites” (in which Dick Miller, appropriately, makes the universe safe for humanity). I take a look at those three titles in this week’s NY Times column, but I’m sure everyone has their favorites from among the 50 or so films that came out under his name.