Also coming to Summerville through Fathom Events is RiffTrax: Christmas Shorts-Stravaganza! The stars of Mystery Science Theater 3000 and “Weird Al” Yankovic have come together for a hilarious holiday event. The Dec. 16 broadcast features Kevin Murphy and Bill Corbett, along with shorts like “Rudolph the Red-Nosed Reindeer.” Audiences will also receive downloadable shorts, songs, and Christmas desktop wallpaper. Tickets are $12.50 for this all-ages event. To buy tickets, visit ncm.com/fathom.