was a proud dad as he watched his son Liam graduate in Massachusetts on Saturday.
The Indiana Jones star, 80, was joined by , 58, as they mingled with other parents at Amherst College.
Married for 13 years, the famous couple beamed with adoration for their child as they were snapped waiting for Liam to receive his diploma.
Harrison looked smart in a classic black suit that he wore over a pale blue shirt with no tie.
His wife and Supergirl actress Calista opted for an elegant white dress that featured short sleeves, a crew neck and lace panels across the chest piece and skirt.
She let her brunette locks hang loose and accessorised with a cream cardigan and matching clutch bag that she gripped in her arms.
The star chose comfortable footwear as she happily took pictures of her graduate son and wore a pair of black ballerina pump flats.
Liam, 22, kept his outfit simple and beneath the black cap and gown he sported a white button-down shirt, beige khakis and black trainers.
Calista opened up about her adoption of Liam in the past and reflected on raising him as a single parent in January 2001.
She said in a statement released at that time: ‘I have always wanted to adopt a child and I am overjoyed that I have been blessed with a beautiful and healthy son.
‘I’m completely enchanted and awe-struck.’
Just one year after she shared news of her becoming a mother, in 2002 she met her soon-to-be husband Harrison at the 59th Golden Globe Awards.
The blossoming couple went on to live together almost a decade before saying ‘I do’ in 2010 during their stay in New Mexico while Harrison was starring in the action flick Cowboys and Aliens.
Speaking about his experience with fatherhood and taking Liam under his wing, Harrison told : ‘I’ve got five kids in total, so it’s not my first rodeo.
‘Yeah, obviously, I’m getting older but I don’t relate to it very much. It doesn’t interest me as something to dwell on. I have a 9-year-old kid at home. I feel like the father of a 9-year-old.
‘My older children have taught me a lot about parenting. My first child was born when I was 25. I reckon I’m a little better at it now.’