What is the dog breed in OUTBREAK???

[Jack Mitchell]

Hi all,

I'm trying out to figure out what breed of dog these two dogs from the movie
OUTBREAK are. They aren't in the movie too much (just the beginning, I
think). They're Dustin Hoffman's and Rene Russo's dogs. They're large, coat
with brown, white, and black, and look similar to Saint Bernards, but they
aren't. They're not Bernese Mountain Dogs either. I really like them...Maybe
they're mixes not sure. There's also one on the commercial where the dog
uses the Polaroid camera to catch the cat tipping over the garbage. Has
anyone seen the movie or the commercial and can tip me off?