Mervyn LeRoy was a more than capable director and was responsible for some great films, especially 'Gold Diggers of 1933', 'Random Harvest' (my personal favourite of his) and 'Waterloo Bridge'. Also like 'Little Women' a good deal. Another reason to see 'The World Changes' for me was the cast, Paul Muni and Mary Astor could always be counted on to give very good and more performances. And there has been no bias against melodramas, some great ones out there.
'The World Changes' is not one of the best examples of melodrama and doesn't entirely escape potential traps. It is far from being one of the worst at the same time and is actually a lot more interesting than it sounds. On the whole it was a very well done if quite sprawling film, especially in the production values and the acting, that represents all involved well if not seeing them at their very best. 'The World Changes' is not a perfect film but is deserving of more credit.
Could it have been better? Yes. With many characters and events, 'The World Changes' at times did feel over-stuffed and a bit sprawling. A longer length by about half an hour more would have made this less problematic and would have given more room for more depth.
While most of the dialogue is fine, not always the case with melodrama, there are times where it does get on the overwrought side and where it rambles (Muni's dialogue for instance could have done with a trim).
In no way is this meant to sound that 'The World Changes' is a bad film. There is a huge amount to like about it. It looks great for one thing, with the photography especially being spectacular at its best. LeRoy directs with assurance and things don't plod too much under him. When it's used, the music is sumptuous enough and doesn't come over as too syrupy or melodramatic. The ageing is remarkably convincing, in look and acting.
Although the dialogue is not perfect, much of the script's construction is solid and neatly done without being too much so. The story sprawls about but is mostly quite absorbing and moving, and the characters are far from sketchy, intrigue from the get go and carry the story beautifully. The historical characters fascinate. Not to mention that they are excellently acted, especially from Muni in a complex role that he pulls off with vigorous but never overdone aplomb (especially shining in the character's more troubled side). Though one shouldn't overlook scarily formidable Astor and against type and quite powerful Aline McMahon.
Overall, didn't wow my mind but very interesting and well done. 7/10
