Exodus was a decent movie. Unfortunate about the changes they made to the storyline. I won't spoil anything, but why do atheist directors keep making Bible movies? Seems like they are missing the point and target audience.
What changes did you find unfortunate?
The interaction between Ramses and Moses after Moses returned to Egypt. That's the biggest flub up.
The handling of the red sea at the end was
for me. With the budget they had? That could have been much better. And it made no sense to have it end the particular way it did.
It wasn't necessarily detrimental to the movie, but where his family is when he returns to Egypt was a complete change from the story and thus made for a bunch of drama that was unnecessary.
Other nitpicky things that didn't necessarily make the movie bad, but affected the story a great deal: who actually exiled Moses and why (if they handled this right they could have handled the Ramses-Moses thing mentioned above the right way)
And as always as a Christian it is obnoxious to see them take these movies and leave the whether God exists or not as ambiguous. Believe the story or not, but staying true to the story makes it a much stronger narrative in my opinion.