Name of Nicholas Cage's son:

Kal-el
Which is Superman's given name when he was born on Krypton.
Source: Los Angeles Times, 10/8/2005

 
   
  Name of Christie Brinkley's daughter:

Sailor

Source: Press Association, 6/22/2005

 
   
  Name of Sylvester Stallone's son:

Sage Moon Blond

Source: San Antonio Express News, 7/23/2004

 
   
  Name of John Mellencamp and Elaine Irwin's son:

Speck Wildhorse

Source: San Antonio Express News, 7/23/2004