"When I got to ride on the back of Elliott, I was screaming, 'I'm in my mid-30s and I'm riding on the back of a dragon!' It was very exciting for me. I've got kids and their first thought when they first saw it was not, 'Oh Eliot is a CGI character.' They were like, 'Oh my gosh, you worked with a dragon!' And that's the best feeling. It made me cooler than I usually am to the kids."
Bryce was delighted to land the role of forest ranger Grace Meacham in Pete's Dragon because when she and her sisters, twins Jocelyn Carlyle and Paige Howard, and brother Reed Howard were growing up the original live action/animation crossover was one of their favourite films.
Bryce and her siblings watched it so much their VHS video copy wore out.
Bryce - who is the daughter of filmmaker Ron Howard and his wife Cheryl Alley - said: "I was born in 1981 so it was just one of the earlier movies in my life that I became obsessed with. The VHS copy of that film just got completely worn out.
"When I told my little sister that I was going to be doing Pete's Dragon she actually burst into tears. She was like, 'Oh my gosh, it's like our childhood all over again!' "
Read more:
• Fans slam Matt Damon's 'racist' new role
• Tom's huge cost of dating Taylor Swift
Bryce was in London on Sunday for a special screening of Pete's Dragon held at the Ham Yard Hotel.
The flame-haired beauty was joined at the event by her father Ron, 62, and a host of celebrity guests including actress Natalie Anderson, Jenni Falconer and Linda Robson.
- Bang! Showbiz