There are many good reasons to spend time looking at the
impact of the Spanish Civil War on culture in the 20th century. As well as
overlapping with the IB world literature option, there have even been
questions on how the 'Arts' were affected by the war.
For the literature of the 30s with particular reference to
the Spanish war see the general reading list. On art, Picasso's is central.
This fantastic history site by David
Hart includes images of Picasso's work as it progressed. On Spanish
Civil War cinema in general, this article by David
Archibald of the Guardian newspaper is a good overview. For
Ken Loach's Land and Freedom you should consider the following
questions and for further information consult this article by Ian
Davies of Edgewood College, Madison.