Do you know this movie?

something like 3 people are looking for a boy who is suppossedly an angel, and he is in this house in the middle of no where, just like a field. and a priest is trying to protect the boy. also there is a large yet skinny dog-like creature with elongated extremities and it seems as if it is made of wood. the movie is quite surreal and seems contemportay. i know this is a vague description but i only saw a very short portion of it on HBO. thanks for your help