Why do you build Fences?

Do you build fences to keep people out or in?  This seems to be the question poised in the second trailer for this film.

There is an official synopsis, however it only says that the film is based on August Wilson’s play. So, here is a better one from the films’s Wikipedia page

Set in 1950s Pittsburgh, a former Negro league baseball player, now working as a waste collector, struggles to provide for his family and come to terms with the events of his life.

Building in UK cinemas soon
Follow the conversation via #fences or at the official website