But wouldn't it be more believable if the actor playing an actor was good at acting?

I assure you, In a year when when people with fresh ears hear that 'Woman' track, those perceptions will start coming back.

Hate to nitpick, but I think you accidentally embedded the trailer for the new Saw movie here. I think Whoppi will make an excellent Jigsaw though.

I heard from a very reliable source that one of the characters will lose their Boz Staryear toy and will need to go on some kind of a journey to find it