Yep, we discussed Hedlund when Skars got into this. Pena was more careful on that front - he wouldn't mention his name, but you sensed his frustration with the situation because there had been a long conversation about his prep for "End of Watch" as a cop with Gyllenhaal and how he, Pena, personally spends time building his performance, so to switch horses didn't really help him. (Interesting actor side note, Pena also said he hires improv actors to run his lines when he does comedy scripts so that he knows where he wants to go off script in takes).Alex was cast at the very last minute because Garrett Hedlund dropped out just before filming was to start. At Berlinale in an interview Hedlund was mentioned Mcdonagh and his response was " He's a dick".
Also, when asked about Skars in another context, he said "my woman thinks he is super hot, so there you go"
And the other recasting of Theo James for Guy Pearce really doesn't work, but not surprising.