That might sound all well and good to some. Except that Miss Marple is generally expected to look like THIS:
I know Disney wants to adapt the stories for a "younger audience", but it's not like little kids don't like old people. Why wouldn't you cast a Judi Dench or a Helen Mirren or a Stephen Fry in drag? It's not Miss Marple if it's Jennifer Garner, is it?
I don't know, but I'm throwing my fat bottom at the next James Dean biopic they make. This gives even the worst casting ideas hope. Just picture this as Jennifer Garner, then get back to me.
(BTW, that theme music rocks.)