Why A SpongeNo posterWhy A Sponge1940Queuebrick VideoQueueLWatchedWFavoriteFListsDiscussionWhere to watchCopy short link1940Why A Sponge10m·DocumentaryDirected by Mary Field·1940QueueLWatchedWFavoriteFWhere to watchListsRateRateNA/10 avgNo member ratings yetOverviewDiscussionA Secrets of Life short.DirectorMary FieldStudioGaumont-British InstructionalOverviewDiscussionCastCrewDetailsWhere to watchNo cast listed.