I'd always written off the Star Wars Sequels (7, 8 and 9). But I've just finished 8, and below the surface, it's not a terrible film.
Of course it doesn't hold a candle to the original trilogy, or the prequel trilogy, but it's not too bad.
7 was just a ripoff of 4, but after that, they did create a new arc. I guess you _could_ argue is a rehash of 6 (the 'emperor' is defeated by the light, the rebellion survives against all odds), but there's more to it than that, I think.