X the Unknown
- વર્ષ: 1956
- દેશ: United Kingdom
- શૈલી: Horror, Science Fiction, Mystery
- સ્ટુડિયો: Hammer Film Productions
- કીવર્ડ: monster, scotland, radiation, radioactivity
- ડાયરેક્ટર: Leslie Norman
- કાસ્ટ: Dean Jagger, Leo McKern, William Lucas, Edward Chapman, John Harvey, Michael Ripper