Maybe. But I've heard a lot of movies are great (from classics like Citizen Kane to newer movies like Lady Bird), and normally it just makes me disappointed tha

Maybe. But I've heard a lot of movies are great (from classics like Citizen Kane to newer movies like Lady Bird), and normally it just makes me disappointed that I don't think they're as great as they've been built up to be. Casablanca really is a great movie, that stands even without context.