He's not Superman. Not a chance: Not Zack Snyder But Henry Cavill

Henry Cavill talked about how he had already auditioned for the role of Superman before Zack Snyder's Man of Steel and how he wasn't fit!

Zack Snyder's Justice League Didn't Fix the Superman Problem

Seriously what's happened to Superman in the DC(EU)? Why don't they make a new Superman movie? Henry Cavill himself said that he's down for doing it. - Quora

Henry Cavill Almost Became Superman Before Captivating Fans With Zack Snyder's Man Of Steel, But Things Didn't Work Out For This Bizarre Reason Involving McG: He Said 'I Can't Do It'

Henry Cavill News: Aquaman Can Cut Superman? - Zack, We Have A Problem

Review: 'Zach Snyder's Justice League' is far better than its maligned theatrical cut

James Gunn to write new Superman movie, Henry Cavill not returning

Searching for Superman: why Henry Cavill deserves another chance as the Man of Steel, Superhero movies

He's Not Superman': When Henry Cavill Thought DC Fans Will Reject Him As Man Of Steel - News18

Review of “Zack Snyder's Justice League” – “Us United” - Superman Homepage