The Iranian documentary “The Coming Is Upon Us” clearly indicates that these radicals believe the destruction of Israel will trigger the coming of the last Islamic Messiah.
   The Iranian government has produced a bone-chilling documentary that claims that Ayatollah Khamenei, President Ahmadinejad, and Hassan Nasrallah are talked about in Islamic prophecy as leaders who will wage war to bring about the arrival of the hidden Imam, which the film says is “very close” to happening.

http://www.youtube.com/watch?v=WwiadYT-N9k 28:26

Some quotes from the documentary: 
   Whoever guarantees the death of King Abdullah of Saudi-Arabia, I will guarantee the imminent reappearance of Mahdi.
   “The Messiah will not rise unless fear, great earthquakes, and sedition take place.” – Imam Bagher.
   “Adultery will become common. Men will dress like woman. Men will content themselves to men and woman to woman.” – Prophet Mohammad.
   “A Nation from the East will rise and prepare the way for The Coming of Mahdi.” – Prophet Mohammad.
   “The world is filled with injustice and thirsty for the justice of Mahdi.” – Iranian newspaper Kayhan.
   Irak… after the reappearance will serve as the capital of world’s governance of Imam Mahdi.
   Some believe that the ruthless dictator of Iraq who will be killed in the age of The Coming is Saddam.
   "Then extra forces will arrive from Iraq with flags written on it 'Alghovah' written on it."
   "With the start of a new war the destruction of Israel is certain. – Nassrollah, Iranian newspaper Kayhan."
   "The annihilation of the Zionist regime and the conquering of Beitol Moghadas (Jerusalem) is one of the most important events in the age of The Coming."
   Many of the scholars believe that Seyed Khorasani is the supreme leader, Ayatollah Ali Khamenei, which the Hadith have referred to.
   "President Ahmadinejad is an end times character named Shoeib-Ebne Saleh, the film states. He is appointed as the commander-in-chief by Seyed Khorasani (Ayatollah Khamenei). The speaker in the film says that this individual will "move" 72 months (6 years) prior to the arrival of the Mahdi and will lead the recapturing of Jerusalem on "the threshold of the Coming." It is unclear if "move" means a physical action by Ahmadinejad or if it means his coming to power in 2005. If it is the latter, then the regime believes the Mahdi was to appear by the end of the year 2011."