One of the best times to go and see a movie is the summer.
The Fox Theater is a landmark in Atlanta and is one of the oldest and most
beautiful buildings. You can go to plays and musicals there but during the summer you can see a movie and see the Fox at a much cheaper rate. Just go to Fox Summer Series on the page to find the dates and times.
You can also go to a screen on the green. It is a movie that is outside. GA Tech has Flicks or movies. They call it Dodd after Dark because it is at Bobby Dodd Stadium on campus. Just click here for information, http://studentcenter.gatech.edu/seedo/flicks/Pages/default.aspx
Most towns have a screen on the green during the summer. Just google screen on the green and location.
One of the closest indoor theaters is at Atlantic Station. You can order tickets ahead of time or at the theater. To get cheaper tickets for movies or other Atlanta events, go to the Student Center Box Office at the Student Center.
Here is information on Atlantic Station and also movies there, http://atlanticstation.com/movies/.