After watching the film, Ben, 47, welled up and said: "I'm going again, I've just done it again! Phil what have you done to me" before Kate Garraway told the 32-year-old rising star from Gloucestershire: "We both started crying and we are hard as nails.
"Good luck to you, you really have a career in front of you."
Phil produced the poignant short film that has been viewed over 5million times, which shows a man opening up a cassette box — an annual tradition — to listens to a tape recorded by his mum before she died.
Speaking about his reasons for making it, he told the hosts: "It was a last minute decision really, I was a frustrated film maker and I really wanted to get a film out there.
"I really wanted to create something that resonated with people because especially in today's society we need a reminder that we are not just defined by our career, and family does come first."
Fans of viral Christmas video made for just £50 are calling for John Lewis to hire the budget filmmaker for their next festive campaign
He said: "I wanted to make something that makes them hug their dads, wives or their family.
"I remember when I had the first edit together and I played it for the first time. The hairs on the back of my neck stood up and I welled up myself.
"Since them it's always the film I speak most proudly of."
Thousands of commentators praised the video online and admitted that it had reduced them to tears, and Phil said the response he's had from the public has been absolutely incredible.
He said: "I've just been so distracted on my phone, getting all these notifications from people saying it's better than the John Lewis advert which is the ultimate compliment.
"From people who have lost loved ones recently, saying it's allowed them to cope better. Parents saying they've given their kids an extra squeeze, I've cried."
Kate asked if John Lewis had called to offer him a job yet but he admitted: "Not yet, where is my call!"