I also agree on the design. He is much more spindly, not quite the round, fluffy guy that Oswald was. And he's definitely much more of a rogue.
I'm interested to see the evolution of Mickey much more than the Oswald or Julius characters. He just seems to have so much development over the years, that it will be very interesting to watch.
There's also a real change coming in Mickey, and the reason why Donald Duck surpassed him in popularity. Humor derives from pain; either our own or more often, someone else's. But with that, there is the part of our minds that, in order to see it as funny, you had to feel that the character deserved it in some sense. Mickey became such a nice guy that you couldn't feel his pain was comical; you ended up feeling more sympathetic. With Donald, you could laugh at him because you felt he deserved what was coming to him.
But this one is funny because the character of "Mickey Mouse" hadn't been established in people's minds, so you could get away with doing a lot more to him. And to Minnie.
Mickey is a bit of a rogue in this cartoon which is very different to Oswald. We didn't see Oswald deliberately scare and laugh at Sadie or try and force her to kiss him! Another change is how Oswald was constantly changing shape - getting squashed, losing his head, bouncing round as a ball, removing his tail and ears, wringing himself out etc. With Mickey and Plane Crazy these kind of gags are much less frequent. As a result, some of Mickeys bangs and crashes seem a lot more painful (check out Mickey's face when he crushes his nuts on a branch falling down the tree).
Another interesting thing to mention is that Mickey is immediately being established as a creature of the barnyard. There's no reason for a cartoon about flying planes to be set on a farm - in Oswald cartoons, the rabbit was just wherever the action was and you're not expected to think where he would live. Here, however, we're introduced to a character who apparently lives on a farm and so all his friends are farm animals (rather than a random assortment of dogs, cats, wolves and elephants).
Not to say that Plane Crazy is perfect, but when watching it, you are drawn into the characters, their situation, and what is going on in Mickey’s head, which is truly amazing considering that most of the short was done by one man. Even the title card acknowledges it, listing the short as “A Walt Disney Comic – by Ub Iwerks.” That singling out of one man as the key animator is something that you would not expect from Disney, but it was vital here.
This time around, I watched Plane Crazy with the sound down, so that I could see it the way it was originally animated, without a soundtrack. I will revisit it again with the soundtrack to see the differences, but I think I can honestly say that the entertainment value could not increase.
The story is simple – Mickey Mouse admires Charles Lindbergh, and decides to get in his own plane and take a flight. The animals of the barnyard try to help him out by creating a plane, but that one doesn’t get off the ground. He creates a second plane out of a beat up car, and manages to get Minnie up in the air with him. Of course, as in any good Disney story, something goes horribly wrong, and the plane comes crashing to the ground.
The real thing to marvel at here, though, is not just that this short was done almost entirely by one man, but that there are no shortcuts. The backgrounds are more detailed than the Oswalds, the characters have more fluid motion, and the point of view changes frequently.
Take the sequence where Minnie is in the plane alone, flying behind a cow, and the POV is from behind her, as it shifts from side to side as an example. Then there’s the sequence when the plane begins to crash, and the POV is looking straight down at the ground, which circles around and around as the plane comes down. It’s simply amazing.
No review of Mickey’s first appearance would be complete without talking about the character design. He is obviously different from the current rounded, smiling mouse we know as the corporate symbol. Mickey in Plane Crazy is a spindly limbed mouse with a fat oval body and circular head. It’s a very different idea from the design of Oswald or even Julius, who each had thick limbs and a rounded feel.
Mickey here is also more of the adventurer and the mischievous soul than he would become later. While up in the plane, he forces a kiss on Minnie, which prompts her to jump out of the plane. What’s great is that simply by looking at him, you can see the mischief in his thoughts, which is more of the great personality animation that Disney is famous for. All in all, an extremely successful debut short for Walt Disney’s most popular character.