The out of nowhere cult was NOT needed in the movie nor the book. I guess they had so much time left that it was included for pure nonsense to waste time and make the movie last longer.
The acting was good. I like Stanley Tucci, Miranda Otto and John Corbett.
And even though I don't own any pets nor want to own one in the future, I did tear up when the dad had to get rid of the dog. Sniff.
The movie was not bad except that unnecessary cult popping up.