TV Guide Online: Earth Review and credits. http://www.tvguide.com/movies/database/ShowMovie.asp?MI=39329

IMDb: Zemlya (1930) A 1930 Russian film known in the United States as "Earth," and in other English-speaking countries as "Soil." Cast and credits, plot summary, viewer comments and rating. http://us.imdb.com/title/tt0021571/

IMDb: Enough Film information and synopsis, cast and crew, reviews, multimedia, and related links. http://us.imdb.com/title/tt0278435/