In the last decade or two 2D animation has really died out. Disney was the leader in this style  but on the back of Frozen's HUGE success I suspect they too have moved on.

One of their final films in 2D animation, The Emperor's New Groove, is one hell of a film to end on. Fantastic characters, cast, and story come together to make this a film that both of us would recommend to everyone. A must see even if you aren't a big fan of animation. 38 mins