Dog or Horse in a movie

There’s a movie

There is a guy standing there and a big dog or horse or some kind of big animal
Is coming up to him and he is terrified and the animal barks and he is like “ yes sir yes sir “ like in a very funny way

Like the animal is in charge and he is not

I just can’t remmember where I saw it

Probably a long shot but it could be Up (2009)


https://www.imdb.com/title/tt1049413/

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