Harrison Ford wants to adopt Calista Flockhart's son

Harrison Ford is planning to adopt Calista Flockhart's 7-year-old son, it has been revealed.

The 'Indiana Jones' star, who already has four children from previous relationships, is keen for Liam - who Flockhart adopted in 2001 - to take his name.

A source said: "Harrison wants to give  Liam is name.  He adores him as though he were his own flesh-and-blood, and Harrison is the only dad Liam has ever known."

Calista is happy for the 65-year-old to adopt her son - but she wants to marry him first. "She says it's fine with her if Harrison adopts her boy, but she wants to walk down the aisle first," the source tells the National Enquirer.

Harrison and Calista have been dating since meeting at the 2002 Golden Globe Awards after the former 'Ally McBeal' star spilled wine on his award.

Harrison has two sons with his first wife, Mary Marquardt, and a son and a daughter with his second wife, Melissa Mathison.