The short films of Don Hertzfeldt are NOT for everyone's taste. His stick figures and ultra-bizarre sensibilities make them among the strangest films you can find. I warn you about this before you decide to watch this film.
"It's Such a Beautiful Day" is the third film in Hertzfeldt's 'Bill Trilogy'--three films about the same protagonist which have been strung together into a film of the same name. In other words, there is a 23 minutes short called "It's Such a Beautiful Day" (which this review is for) and the 62 minute full-length film of the exact same name! Confusing? Well, yes, but so are these cartoons!!
The title is used throughout the film. Bill's madness caused by a brain tumor gets worse and he begins repeating himself, loses contact with who people are AND, inexplicably, becomes almost god- like (though you cannot help but assume this is a delusion). The artwork is nicer than in the previous two films--as he integrated many of Bill's scenes into the real world. Very strange but oddly enjoyable.