In its nearly 100 years of existence, the Gaslighter Theater in Campbell has gone from holding sharecropper’s cash as a bank in the 1920s and showing movies during World War II to being a small-stage theater for vaudeville acts and an all-ages rock venue as recently as 2006. At that time, the white marble landmark, with thick columns bracketing the entrance, was closed temporarily so it could be refashioned as a lounge. Five and a half years later, the Gaslighter remains dark. But there’s hope the theater could be resurrected in coming months if it can overcome the kind of obstacles that frequently crop up in small town development battles.