ATASCADERO — The movie theater in the Colony Square shopping center will have a new operator effective immediately. Sanborn Theatres, the local family cinema business, will replace Galaxy Theatre as operator after 10 years, Jeff Nelson, CEO of Cinema Square, LLC, and the theatre’s owner, announced on Thursday, June 23. While the Galaxy Theatre’s lease does not run out until the end of June, the theater officially closed its doors as a Galaxy Theatre end of day on June 23. However, Bruce Sanborn is hoping to reopen the theater on Wednesday, June 29, under the new name Colony Cinemas.