Jon Hamm struggles with the amount of herbal cigarettes he has to smoke for his role in Mad Men, calling it "a debilitating endeavour".
The actor plays advertising executive Don Draper in the popular series, which is back on screens for its fifth season - but Hamm admits cigarette scenes leave him suffering
He tells Britain's Metro newspaper, "Someone actually watched the pilot and counted the number of cigarettes I smoked in that episode and it was something like 74. You can hear it in my voice, it is a debilitating endeavour.
"But we're being realistic - people did smoke back then. My father smoked everywhere, even in the car, in the summertime, with the windows up - it was part of life."