Welcome back to the Disney Parks Moms Panel, Christopher!
It sounds to me like you are planning to enjoy
Epcot Forever from a location near the International Gateway entrance to
Epcot, and head out to Disney's Beach Club Resort from there.
Unfortunately, this transportation plan will not work on a night when Magic Kingdom Park is scheduled to close at 9:00 pm.
Bus transportation from Disney Resort Hotels to the theme parks ends 1 hour prior to each park closing, so you will not find any buses running from
Disney's Beach Club Resort to
Magic Kingdom Park at that time.
I have a couple of suggestions for you. You could try to watch Epcot Forever from a location closer to Future World, and head out Epcot's main entrance after the show to use
monorail transportation back to
Bay Lake Tower at Disney's Contemporary Resort.
If you have plans at Disney's Beach Club Resort or you would just prefer to exit via International Gateway, you could take a bus from Disney's Beach Club to
Disney Springs, and transfer to a bus back to Disney's Contemporary Resort. Another option would be to take a
Minnie Van from Disney's Beach Club back to Bay Lake Tower. These cute polka-dotted vehicles are driven by friendly and professional Disney Cast Members and can be requested through the Lyft app.
I hope that helps! Please let us know if you have any additional questions as you
plan your Walt Disney World Resort vacation. Enjoy your stay!
Anne Marie