50/50 explores comedy and cancer
Most people do not view cancer as a laughing matter but new Hollywood movie 50/50 is a comedy drama based around the diagnosis of the illness.
Talking Movies' Tom Brook has been talking to the film's stars, Joseph Gordon-Levitt and Seth Rogen.
Talking Movies is broadcast on BBC World News on Saturday at 1330 GMT and is repeated on Sunday at 0030, 0730 and 2030 GMT.