Some of you might know Liu as Jung in Kim's Convenience. He can act, he's funny, he's already buff, and he's worked as a stuntman, so he seems like a great pick for a Marvel leading role. If I have any doubts it's in his acting chops, but I'm getting used to being surprised by comic book castings.
and Tony Leung as the for reals this time Mandarin.
So this is even better, IMO. Tony Leung is a legend and has been in some of my favourite movies (Hard Boiled, Chungking Express to name a couple) and can absolutely nail a villainous role if Marvel bothers to write one for him. The choice to make the for-realzies Mandarin is pretty interesting.
I've had my doubts about this movie, but these seem like steps in the right direction. Very cautiously optimistic.