Watch Atlan (2015) : Full Movie Online Free In Turkmen language, Atlan means "mount a horse and depart". Horse is the most important element in the life of Iranian Turkmen. That's why courses are some of the most significant social events in their land, Turkmen Sahara. Turkmen Sahara is a region in north eastern Iran and is homeland to Iranian Turkmen. Ali is a Turkman with his life, like many of his peers', intertwined with courses. Now his wedding depends on his success in courses. This documentary film is about Iranian horses.