There's always the Cecil B. DeMille version, but in my opinion, the best most 'accurate' movie of the Passover Story is Prince of Egypt. Don't be put off by the 'animated' label - it's very good and the soundtrack is great.
BTW, Burt Lancaster starred in a B version of Exodus in a movie called 'Moses' and my DH is in the crowd scenes - someplace. It was filmed around Eilat back in the 1970's.
"The Prince of Egypt" is wonderful, has a Jewish flavor and brings in a lot of Jewish midrash about the story. My husband likes that it has a non-Disney aesthetic for the animation.
When the movie came out, my daughter was about 4 years old and we took her with us to see it. But being a young child, she chose a most unfortunate time that she had to use the bathroom. I didn't want to risk having a puddle in the theater, so I had to leave just as the waters were parting! I didn't get to see the climax of the movie until it came out on VCR tape.