(spoiler warning!) I loved the WALL-E end credits too, although rather than being "fantastically optimistic" I thought they were a more realistic counterpoint to the optimism of the ending of the main body of the film. The credits showed that while humanity would survive and recover, it wouldn't be as simple as using the technology that had sustained them on the spaceship or reactivating dormant technology on earth. The returning humans must rebuild civilization the hard way, starting from scratch and retracing the original humans' steps. - Ben Darnell