Channing Tatum should be cast as Superman because it would be SUPER COOL. Channing Tatum looks like and has the physical looks to play Superman. He voiced Lego Superman in The Lego Movie 1, The Lego Batman Movie and The Lego Movie 2 The Second Part so he will have familiarity and experience with the role. 

Also, if he was cast as Superman, he would look like the comic book version and it would be comic book accurate just like Christopher Reeve. He would be a combination of Christopher Reeve and Henry Cavill. Channing Tatum as Superman WOULD be a dream come true. I have DESPERATELY wanted him to be cast as the Man of Steel. 

Channing Tatum is my actor of choice for Superman. He would be the next Christopher Reeve if he portrayed the DC Comics character of Clark Kent aka Superman. Channing Tatum would bring the Kryptonian to life and make the audience believe that a man can fly just like Christopher Reeve did. He would ALSO be the next Henry Cavill if he was cast as the godlike alien. It would be entertainment at it’s finest. 

Christopher Reeve is THE real Superman and if Channing Tatum was cast as the son of Jor-El, he too WOULD be THE real Superman. He would have the light touch that Christopher Reeve had and he would be a badass like Henry Cavill. Channing Tatum would suit the role.