Wo shi shei 2015

I know its very difficult to decline a favour in Chinese culture, and so we have to deal with a lot of movies where famous actors appear for a bit to help out the son of a cousin or the friend of the uncle or whatever, but i just dont understand why they dont hire somebody who checks and watches the movie before it gets published... this movie is a good example for the situation.. its soo painfully bad, although the beginning is ok, but the storyline just gets more and more ridicolous with every minute...