Metacritic reviews

Sir Billi lacks the looks or charm of even the most rudimentary CG offerings being made today, as if not only the animation but also the plot and characters were spat out by off-the-shelf software.

I do not invoke the terms “Gestapo” or “genocide” lightly; for an ostensible romp aimed at small children, Guardian Of The Highlands is an incredibly dark, disturbing film that derives all of its suspense from putting adorable animals in horrible peril.

Even the vocal presence of Sean Connery can't lend interest to this tedious, crudely animated, bafflingly conceived cartoon feature, liable to please neither children nor adults, developed from a 2006 short film to which Connery also contributed.

This distinctly amateurish animation may be targeted at tots, but you’d have to particularly hate your children to inflict on them this tale of an elderly vet (Connery) trying to save a missing beaver.