The Two Georges by Richard Dreyfuss

I've often thought about The Two Georges steampunk adventure novel by Richard Dreyfuss which inexplicably hasn't been a movie yet, and it occurred to me that it might be Spielberg's type of story. It's a bit Indiana Jones-ish and quite Britanno-centric. After the godawful BFG, written by the IMHO-overrated Roald Dahl, it's clear that Spielberg needs better source material.

Thinking of casting choices:

Colonel Thomas Bushell: Hugh Jackman
Captain Samuel Stanley: Will Smith
Kathleen Flannery: Bryce Dallas Howard
General Sir Horace Bragg: Billy Bob Thornton
Governor John Burnett: a slightly overweight red haired man, just off the tip of my tongue as to who fits that description
Honest Dick: Robert Wisden or any other expert Nixon mimic
Captain Jaime Macias: Michael Peña
Patricia Oliver: Melissa McCarthy
Governor-General Sir Martin Luther King: LeVar Burton
Sir David Clarke: Tom Cruise
Sir Devereaux Jones: ?
Alexa Jones: Reese Witherspoon
Felix Crooke: ?
Major Shikalimo: Taylor Lautner
John Kennedy: Stephen Collins, or any elderly actor who looks reasonably like a geriatric JFK and can pull off being an a-hole really well
Joseph Kilbride: ?
Le Comte Philippe Bonaparte: Vincent Cassel or a similar "obnoxious Frenchman"
King-Emperor Charles III: Benedict Cumberbatch
Count Friedrich-Maria von Hötzendorf: Arnold Schwarzenegger in a cameo, just for kicks (he looks nothing like the character in the book)
Marcus Aurelius Stimpson: Richard Dreyfuss as an author-cameo.

As for the various Sons of Liberty goons who pop up throughout the novel, most of them blur together in my mind. The bulk of them could be played by central casting's stocks of Nazi and/or KKK types.