Timey-Why Me? Now that Radcliffe is pottering on from the role that made his name, he could do with an appropriately epic vehicle to showcase his acting credentials. The Doctor - at once ancient and youthful - makes the ideal stepping-stone.
Ideal Companion: Too young, and you risk ghettoising the film as strictly for the kids; too old, and we're in Mrs Robinson territory. Any of 184.108.40.206.'s leading ladies would suit admirably.
Who costume: A ban on robes and glasses would be a start.
Regenerate Or Exterminate? Matt Smith might have blown apart the "too young" argument but - at six-and-a-half years' Smith's junior - Radcliffe really is too young.