Google's advanced search allows you to search by domain name (on bottom line of the advanced search form).
Entering .edu or .gov into this line will only return results from educational or US government sites, which tend to contain more reliable scholarly or factual information. You will still have to evaluate the sites for authority, accuracy, currency, and objectivity.
* Bible in the Reel World (Beta) An alphabetical listing of popular films analyzed for scriptural references. Each entry included the cast, the names of characters, the films' ratings, a brief synopsis of the film, and an analysis of each film for scriptural references.