If you are a fan of Chaos Theory then you will no doubt be familiar with The Butterfly Effect. Essentially, a small change at one place in a deterministic nonlinear system can result in large differences to a later state. Or, as this hapless man discovers, the lack of milk in his fridge will lead to a series of events he could not possibly have foreseen. Although the effect is not thought to kick in so quickly, this gives you the idea.
The Butterfly Effect was created by Passion Pictures and directed by Dan Sumich. It is one of Europe's leading independent production companies, producing award winning films in a variety of contemporary styles including 2D drawn animation, computer animation, stop frame animation, mixed media, and live-action.