I have no doubt that she could pull it off, but do we really need ANOTHER revival of this musical? Ugh, its so bland and boring. Sorry, its just so dated and I can't seem to get attached to this show at all. Ugh.
It sounds like its either going to be a Broadway transfer of the recent London revival or some kind of film version. But I'm not exactly sure Keira Knightley could single handedly green light an 80 million movie musical at this early point in her career.
Acting wise, yes I could see her in the role. If she can sing I would hope they put her in the musical. If she was bad, then the reviews might judge it and shut it down or being a celebrity, she probably only be there for a limited run. But to remake the movie version of the musical? Don't fix if it's not broken. Yes, Audrey was dubbed, but her and Rex Harrison were superb and the movie is a classic. She already remade Pride and Prejudice, she doesn't need to remake another movie too.
I'd kind of like to see this as movie, but I think I'd rather see it on stage. She's so charming, if she can sing 8 shows a week I'd love to see her perform live.
I Wish... Madeline Kahn could have played the Witch in Into the Woods. She would have rocked!