Carmike Cinemas, Inc. /quotes/zigman/87233/quotes/nls/ckec CKEC +2.28% , a leading entertainment, digital cinema and 3-D motion picture exhibitor, today announced the closing of its purchase of three Atlanta-area movie theatres with a total of 40 auditoriums from MNM Theatres. The agreement was first announced August 19 as a Letter of Intent. The three theatres are based in Atlanta, Hiram and Cumming, GA.