Size sometimes does matter

I have come late to Jack Reacher, the hero (or should that be anti-hero?) of Lee Child's thrillers.  But I, like I suspect most other readers, have a sort of mental image of him, and in particular, because Mr Child tells us so, that he's tall - 6'5" as I recall.  So it's a bit of a shock to find that the actor who has been chosen to play him on film is Tom Cruise, who if memory serves had to stand on a box for his wedding photos in order not to have his bride tower over him.  Certainly not what I had in mind!