the mall of georgia has a theatre and imax. it is a great mall with a great variety of stores. it is located approximately 20 minutes from downtown atlanta, give or take a few depending on traffic. hope this helps:)
cumberland malland town center doesnt have a theater IN it but its like walking distance...right next to it (regal)people always walk across the mall parking lot to get there.
idk but phipps plaza has one