I just seen a video on you tube of superman fighting cloneman does anyone know who he is?

Here's the link to the link to the vid http://www.youtube.com/watch?v=T8yeVeeXb鈥?/a> - it says its from the superman doomsday movie??? i dont know if that's true but can anyone who's seen the movie give me a mild but strong spoiler based on the vid and the fight in the vid and tell me why it appears that they are attacking superman without spoiling the movie? Thanks.I just seen a video on you tube of superman fighting cloneman does anyone know who he is?Not a Clone, He's from a dark Future in which Lois was killed by Lex. After Lois was Killed he turned into a No Mercy Ruler for the World. The Meeting was a last ditch effort to save Lois through Time Travel but he didn't want to disappear with the change, he wanted to replace his old self. (Yeah, a paradox)I just seen a video on you tube of superman fighting cloneman does anyone know who he is?It's this girl called Juliet :)