You know, Ian McKellan's brilliant and cheeky 30s era Richard III just popped back on Netflix so I'm sure I'll see it in the next few days, but it's worth a heads-up. It's especially interesting if you plan to watch House of Cards... and you'll see why, I won't spoil that in case you don't know what it is, but you should pick up on it pretty quick.
And yes, you did see Robert Downey Jr in there as Rivers (actually an amalgam of Rivers, Grey, Vaughan and Dorset, the Duchess of York is also melded in a similar way to keep the cast down and give each character more to do). Sir Ian explained why he made these cuts and what they change in an introduction to the movie I'm reading now (though it isn't required for viewing, the intent was that everything important be on the screen).
You guys will probably dig the design of the flick as well, it's the thirties and there's a great mishmash of Allies and Nazi imagery going on (Mckellan also did the Richard III as Hitler similarity in an extremely effective way in "Acting Shakespeare" but I can't find a clip of it online) so it's got this whole WWII as a blood feud thing going on. And it doesn't really work outside of Britain, but well known locations are swapped around so that a power plant is a prison, that sort of thing. The show Kings kinda did that, with NY becoming Shiloh (the capitol of Gilboa) and it's something I dig seeing in movies when it happens.
It's ALSO an interesting watch since the movie is a quasi-contemporary retelling of the War Of The Roses with the Lancasters and Yorks, which, you might have noticed, were the square one inspirations for the Lannisters and Starks in Game Of Thrones. I love it when stuff connects together like that. I honestly feel like if I had a teacher who made connections like that, that I would have been a much better student.