Why did Mads Mikkelsen walk out of his Fantastic Four audition? Why did Tyler Mane come back as Sabretooth in any other X-Men movies? How big will J.K. Simmons‘ role as Commissioner Gordon be in Justice League? Is Henry Cavill hinting that someone has already been cast as a Green Lantern? Want to be an extra in Fox’s new X-Men show? All that and more in this edition of Superhero Bits.