This movie bears the flaw of many movies made by humorists, they lack consistency.
Here we finally do not know what the topic of the movie.
Is it the story of a man what feels he is invisible because nobody reacts to his presence or his personality, like the start of the movie can let us think? Or is it the adventures of a man that disguises as an owl? Or an ode to kindness?
Both could be combined but that wasn't the case here and we quickly forget the start of the movie for the sweet and not much else adventures of an owl guy.
In conclusion, an average only movie, that could have been very good, with the right combination of these 2 stories, giving some depth and some sense to this kind adventures, transforming it in the fable it should have been.