I saw a cat. I saw a dog. The only emotional reaction I had was when I involuntarily groaned at the loss of an electronic device; I think this may say more about me than the film[http://www.edfilmfest.org.uk/movies/show/the_cat_leaves_home/].
There were lots of holds on a view down a street, whilst things happened somewhere else in the frame, some of which may have been relevant. Half of the time, it worked and you got a chuckle or some development. The rest of the time you were left wondering if you'd missed something.
By the time the (rather abrupt) end came, I'd built up some idea that it was meant to be saying something about the cat natures or dog natures of the characters, but I wasn't really sure who was what.
You wouldn't walk out of this film, but you may use it as an excuse for a nap.