These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Narm: For the most part, the noises the bear makes in the film were made by the filmmakers according to the audio commentary.
Special Effects Failure: When not using the live bear, it's rather obvious when the film uses a guy in a bear suit or bear paw gloves. Also, save for one shot towards the very end, the actors and the bear are never in the same scene.