United Kingdom, April 12 -- Zachary Levi says parents can learn "so much more than we can ever imagine" from their children.

The 44-year-old actor - who is expecting his first child with partner Maggie Keating - has starred as Scott LeRette, whose son Austin has autism and brittle bone disease, in new film 'The Unbreakable Boy', and he has opened up on how parents grow along with their kids.

He told the 'On With Mario Lopez' podcast: "Scott really learns - as parents do, right? Parents are teachers, but the children are really teaching us all the time so much more than we can ever imagine.

"Scott is learning so much from bis son, how to be present, how to be more loving, how to be more accepting. It's really beautiful, man, it's a real...