I can't think of anything thematic from Nolan's Odyssey that felt remotely new or likely to challenge people's perspectives, not even in a small way.
Sometimes insights are very tiny. It doesn't have to be a huge idea. If there was something particular about Odysseus' experience of guilt that felt specific & true-to-life, that would be enough. But I don't think that's there. Sure, we see that regret makes you want to forget, but again, we all know that, so without some specificity, it's empty.