NCM Fathom Events and RiffTrax.com® are overjoyed to bring the stars of Mystery Science Theater 3000® (MST3K) back to select cinemas nationwide on Thursday, December 5 LIVE at 8:00pm ET/ 7:00pm CT and tape-delayed to 7:00pm MT/ 8:00pm PT for only one night with a hilarious never-before-seen take on the family classic Santa Claus Conquers the Martians.