Hmmm. There are some scenes where it does look like they are actually cuddling, but then others where the dog looks like he's trying to bite the cat's throat and/or face. I'd be concerned that he would eventually take a chunk out of the cat or bite through one of its eyes.
So cute! I think the dog is just giving gentle little love bites, never trying to be bad. The little dog sounds like a chainsaw when he...grumbles? I don't know what to call the noise he makes,
That was adorable and nothing to be concerned with, Linda! Dogs have amazing control over their teeth and as the other poster said, those were just "love bites." My schnauzer/shar pei mix does it to ALL the pets in the house. She also makes "that noise" and we call it "revving her engine." She makes it all the time she's playing--strangest thing I've ever seen.