Sherri,
Thanks for your question (from Indiana, no less)!
Extra Magic Hours and
Disney After Hours events are two different things. Extra Magic Hours are a perk offered to Disney Resort hotel guests. They allow those guests entry into a select park either an hour early, or a few hours after standard park closing. The park is designated well in advance by Disney, so you should have time to plan. On May 11th the Extra Magic Hours are actually going to be held not at the Magic Kingdom, but at
Disney's Animal Kingdom Theme Park in the morning, from 8:00 am to 9:00 am. The
Magic Kingdom operating hours that same day are from 9:00 am to 9:00 pm, with no Extra Magic Hours.
Disney After Hours, is a special ticketed event, as you know. It is a great way to get several hours in the park with lighter crowds.
Disney After Hours at Magic Kingdom Park is more than just short lines. They have special entertainment at the park as well. If you really want that extra time in the Magic Kingdom, the ticketed After Hours event would be a great way to do that. In the case of May 11th, that would be an added 3 hours of park time.
Write me back if you have any follow-up questions!
Have a Magical Vacation!Doug