To be fair, Jake Weber seems to have lived in the US since his teens. I don't know what his "offstage" accent is like (when I saw him on Broadway, he was playing 5 Italian brothers in an Ayckbourn play).
May I ask for a clarification on the current question? The use of "both" suggests two movies in which both actresses appeared together. But they don't seem ever to have acted together. So, is it one movie for Hunter, and another for Bujold?