Is the movie "The Ten Commandments" a good movie if someone is looking for a basic idea of what happened to the Jews in Egypt and in their departure from Egypt. Is it based only on the Old Testament or does it rely on ideas in midrashim as well as the Talmud?
many of the supposed inaccuracies were actually adopted by DeMille from extra-biblical ancient sources, such as Josephus, the Sepher ha-Yashar, and the Chronicle of Moses. Moses's career in Ethiopia, for instance, is based on ancient midrashim.
I haven't read the midrashim to vouch for the full truth of the above statement. However, keep in mind that Hollywood films, esp. this one which was designed in a film era of huge glitz and production (look at the huge cast used in this movie!) tends to blur and exaggerate the truth. I question a number of the various love scenes and romances shown in the film. I'm not sure that Dotan was the constant curmudgeon sly person who was always against Moses about every little item. I don't know where the film gets the idea that he was an advisor to Pharoah. One thing, particularly, seems contradictory. Moses had a speech impediment. In the film, when he speaks to Pharoah, he seems like this clearly spoken ominous speaker with a deep voice. Where did they get that?
Overall, I think people can get SOME idea, but, I'm not convinced that it's an accurate depiction of things. It's Hollywood, doing its shtick, after all. The film was not meant to be a documentary.