 SPOILER: When the frogs are falling, we see a caption on a picture  in Claudias apartment, "but it did happen". And it did. This  happens when storms pass over a lake teeming with frogs, picking  them up and dumping them elsewhere. This happened in the town of  Villa Angel Flores in Mexico after a tornado picked up a cluster of  toads and dropped them over the town one evening in June, 1997.