The Annual Columbus 24 hour SF Marathon is returning to the Drexel Theatre May 19th-20th.  Among the classic films being screened are: Reptilicus. The Creeping Unknown, They Live, The Green Slime & They Live, as well as other great genre films and premieres.  The marathon is great fun and hopefully they will run the hilarious short Gravity, which is a delightful spoof of the science films we all were forced to endure in grade school.  Here is the link to the Marathon:
http://scifimarathon.com/