70 million copies of “Fifty shades of Grey” have been sold and we wonder if the readers will be satisfied with movie cast compared to what they pictured in their minds. Jamie Dornan, who plays businessman Christian is 24, the same age as Dakota Johnson, who plays college student Ana. Above, they’re in frigid Vancouver rehearsing a scene in front of the Grey Enterprises office building. What’s in the envelope? We’re told it’s a sexual contract detailing Christian’s bedroom demands.