....playing the part of Danny Wallace?
Not that Jim won't do a great job (he is a comedy genious, after all), but don't you think that the film will have more heart if it's actually Danny Wallace playing himself, and the film actually stays British?? A film doesn't have to be filmed in America to be a hit -- just look at the Harry Potter movies. Or that sleeper hit, The Fully Monty.
Jim can still produce it, and maybe Jim can have a part in it somehow -- but this is Danny's story, after all. Plus, the thought of Jim playing someone Danny's age is a bit perturbing...
What do you think?