If you want understand the background behind Iran's some what caustic relationship with the west, and in particular America and Britain, then I recommend you read 'All The Shah's Men: An American Coup and the Roots of Middle East Terror' by Stephen Kinzer. It's a fairly detailed account of the 1953 plot by the CIA and the British to overthrow the democratically elected government of Iran, which then lead to 25 years of dictatorship and repression under the Shah. The culmination of these fateful events lead Iran to the 1979 revolution and the rest is history.
A fascinating: 8/10