"the CIA and Britain's intelligence services conspired to destroy Iran's fledling democracy in the 1950s and replace it with a dictatorship under the Shah."

That's not exactly true, Little Hawk. Check the link I posted above,
you will learn that:

• The film claims that in 1953 a democratically elected prime minister, Dr. Mohammad Mossadegh, was overthrown in a plot that installed the Shah on the Peacock Throne. In pre-revolutionary Iran, the prime minister was always appointed after receiving a vote of confidence from the Parliament. Dr. Mossadegh was appointed to his post by the Shah in 1951 and then again in 1952.

• The Shah did not become king in 1953—he had already been on the throne since 1941 (following the ouster of his father at the hands of the British and Russians).

• The accusation that the Shah was a "puppet" of the West and particularly the Americans is an old canard disproven by the most recent scholarship. To the contrary, the Shah was a strong nationalist whose ambitions led to protracted and intense disagreements between Tehran and Washington over the direction of Iran's foreign and domestic policies.

You should see "The Queen and I", a very interesting HBO documentary
made about meetings between the Shah's wife, Queen Farah, and filmaker Nahid Sarvestani, who had fought for the Shah's overthrow.
I think you will like it a lot.