There hasn't been a good Robin Hood movie since Prince of Thieves, and the director straight up gave up trying to get his star to speak with an accent, so he just let Costner speak American. And it was still great (though, I'd say more due to Freeman, Slater, and Rickman, though Costner was no slouch, accent or not). Or you could say Men in Tights, but that was a parody of Prince of Thieves that wouldn't exist without it.
There was the 2010 Russell Crowe Robin Hood that straight up sucked. The Taron Egerton one was okay, but not great. Other than Prince of Thieves, you have Adventures of Robin Hood which was good, but is a bit dated, and the Disney one, which is a classic as well.
Meanwhile, every Count of Monte Cristo adaptation I've seen has been good. Interestingly, my favourite is also by Kevin Reynolds. Even the anime, with its headache-inducing graphics, was pretty good.
What can't they get right about Robin Hood?