I'm not familiar with Jason Stratham, I IMDB-ed him and I haven't seen him in anything he has done before.
I just don't think you can set this in London and remain true to the material.
I'd love to see a cast that features Natalie Portman or Anne Hathaway as Sarah Brown, Hugh Jackman or Ewan McGregor as Sky Masterson, John C. Reilly or Philip Seymour Hoffman as Nathan Detroit, and Marisa Tomei, Reese Witherspoon or the fabulous Jane Krakowski as Miss Adelaide. Maybe someone like Steve Buscemi as Nicely-Nicely Johnson (does he have to be a big person?)
Maybe they'll cast Jessica Biel as Sarah Brown if she does a good job at the Hollywood Bowl concert.
"Some people can thrive and bloom living life in a living room, that's perfect for some people of one hundred and five. But I at least gotta try, when I think of all the sights that I gotta see, all the places I gotta play, all the things that I gotta be at"