On Monday (07Sep09), Stone came under fire from U.S. commentators for walking the red carpet at the Venice Film Festival with Chavez at his side as he premiered South of the Border.
The documentary-style film focuses on the Venezuelan leader and the South American revolution - and Stone is now eyeing a study of Iran's newly re-elected president.
Ahmadinejad is under fire from many of the world's leaders over Iran's nuclear weapons program and his criticisms of the West. The legitimacy of his second presidential term is also in dispute after hundreds of demonstrators were injured as they protested against his election victory earlier this year (09).
And Stone has been in talks with Iran to document the politician, but schedules have so far been conflicting.
He explains, "I was very interested because I thought we were going to go to war in Iran. If we had been more successful in Iraq, I have no doubts that we would have been more involved in the Iranian situation now."