Here's another one I watched a while ago...
Beauty and the Liquid People (also known as Beauty and liquid human and The H-Man) (1958)
Japanese sci-fi/horror flick from the 50's, filmed in color. A hydrogen bomb test in the Pacific Ocean, creates a gelatinous blob of radioactive goo which takes on a life of its own and absorbs any people in its path as it makes its way from the ocean to Japan. I watched the original Japanese release with English subtitles. The story was ridiculous but fairly entertaining and the color photography was gorgeous. One of those movies where I find myself being more interested in the period clothing, hairstyles, cars, and overall vibe, than the story itself.