This is an animated short film by Dudok de Wit. It shows love, grief throughout life, and througout the change of seasons. And it shows it beautifully.
This is such an amazing short film. It manages to connect big themes (what to do when your father disappears?) with endearing everyday details (weather, landscape, the mechanics of bikes). The zen-like simplicity of the drawing makes it all the more touching. And the ending still often makes me cry.
I don't know of any film that deserved its Oscar more than this one.