This is obviously a very low-budget film, and simply could not capture the spendor and majasty of an empire that was the world power of the day. That said, it at least attempted to stay true to the biblical text to a significant degree. Where it stuck to the text, it was worthwhile; where it departed, it was less than ideal.
One area it completely misrepresented was the part of the story that is termed the whitewashing of Esther. She was not some moral example to be imitated by young girls, nor was it some sort of pure romance that led to her being queen.
In Esther 2:12-14, a pagan king didn't command a beautiful young virgin to spend the entire night with him in order to watch old movies. She wasn't then transfered to the group of concubines because she was still a virgin. The fornication of Esther is stated as strongly as possible without actually saying it. Yes, it was a moral failure by her, but not the point of the biblical story. In spite of her sin, she was used by God to be a part of preserving the Jews from an evil murderer, because God specializes in using fallen, sinful people for His purposes.
There was a section in the film about the Messiah and Isaiah 53, and although it was a clear message, it is not found in Esther in any way.
Overall, though far from perfect, it was God-honoring.