Ford: 'Calista is a wonderful mum'

Harrison Ford has thanked girlfriend Calista Flockhart for enabling him to spend time with her son.

The couple have been dating since 2002 and live with Flockhart's adopted child Liam, seven.

Ford, 65, said he was enjoying the opportunity to be a parent again now the youngest of his four children is 17.

He told Reader's Digest: "[Calista's] brought a child back into my home. It's a wonderful opportunity to be part of a child's growing up, which is always an endless springtime. You see the blossoming and the growing and the nurturing and the payoff."

He also praised the actress's nurturing side, saying: "[She's] the best [mother] in the world. She's a mother by choice - she adopted Liam before we met, as a single parent, which is an awesome responsibility to take.

"She's devoted herself to Liam and has done a really wonderful job raising him. I'm happy to now have a part of the job."

It was recently reported that the pair will marry when Ford finishes promoting Indiana Jones and the Kingdom of the Crystal Skull this summer.