...so in DeMille's "Ten Commandments", Sephora (DeCarlo) and her sisters are actually telling Heston "No-o-oooo Mo-o-oses!"?

Yet someone led the Israelites out of Egypt, there's really a Jericho (whose walls came tumblin' down) and ostensibly ten commandment remnants in an ark of the covenant somewhere. Maybe the Israelites snuck out when no one was looking?