The opening credit is by Abbas Kiarostami.
According to Behrouz Vossoughi's A Biography, Nasser Malekmotei's payment was about 300000 rials at the time.
Behrooz Vossoughi had starred in 21 movies from 1962 to 1968, but it wasn't until Qeysar (1969) that he actually rose to fame in Iran's film industry.
The most famous line of this movie by Farman (Naser Malek Motiee) is improvised in which he shouts after getting stabbed: Gheisar, where are you that they killed your brother.
Qaiser, the best-selling film of 1969, played a significant role in creating a new wave in Iranian cinema.