The Smiley Smile Message Board

To clarify the Guardian review situation:

There was a 3 star (out of 5) early review from the Toronto film festival. 
http://www.theguardian.com/film/2014/sep/08/love-and-mercy-review-brian-wilson-biopic

This was the young guy in the video review (http://www.theguardian.com/film/video/2015/jul/10/love-and-mercy-video-review).

The old guy in the video review is the Guardian's senior film critic (and one of the most respected in the UK). He gave it a 4 star review.
http://www.theguardian.com/film/2015/jul/09/love-mercy-review-the-two-lives-of-brian-wilson

And to add to the confusion, there is also a four star ("film of the week") review in the Guardian's sister paper The Observer:
http://www.theguardian.com/film/2015/jul/12/love-and-mercy-brian-wilson-beach-boys-paul-dano-john-cusack-review