User blog comment:Adventuretimegurl123/OH MY!! HUGE ADVENTURE TIME NEWS!! :D/@comment-5241690-20120813131821/@comment-98.211.169.25-20120813162316

I think The Lich (season 4 finale) and the Fiona and Cake episode (season 5 premiere) combined together is the movie. The Lich takes over the world, Finn and Jake meet Fionna and Cake, and they all have to save the world together. Think about it. The S4 Finale has to be 30 minutes and the S5 Premiere has to be 30 minutes as well so it can be declared officially a full length movie. (cuz ya know, 30+30 is 60 and 60 minutes is an hour) Good idea, huh? The Lich has to be the movie, it has to be!

P.S. I, too, want Finn to stay 14 years old, the fact of him being 16 is so weird....