Classic public domain film, digitally preserved and free to stream forever.
The Beast of Yucca Flats (1961) is a notorious low-budget sci-fi horror film in which a Soviet scientist exposed to nuclear radiation during a weapons test at Yucca Flats is transformed into a shambling, murderous monster who terrorizes the desert. Infamously padded, poorly dubbed, and beloved for its sheer strangeness.
Starring Tor Johnson, Douglas Mellor, and Barbara Francis. This film is in the public domain and free to watch, download, and share.