Superman is getting ready to marry his Lois Lane.

Brandon Routh will wed longtime sweetheart Courtney Ford on Saturday at the Santa Barbara ranch of his "Superman Returns" producer Jon Peters, sources said.

The wedding will take place on one of the spread's mountaintops. Expected guests include Kate Bosworth, Kevin Spacey, Winona Ryder, Mickey Rourke, Ashley Olsen, Warner Bros. President Alan Horn and Director Bryan Singer. Gov. Arnold Schwarzenegger has reportedly closed the airspace around the ranch. A rep for Routh confirmed the wedding.