Samuel L Jackson has urged men to be more open about their health problems in an attempt to tackle cancer.
The Pulp Fiction star, who is fronting a new charity called One For The Boys, believes men should talk more about the disease and other illnesses.
Jackson (64) said: "Guys don't talk about their health issues, unless they've got a sprained ankle.
"We'll talk about our injuries but we won't talk about our illnesses, so I think it's time we do that."
The actor said he was motivated to put his weight behind the charity after friends had secretly dealt with cancer without telling anybody.
He said: "When they started talking about it, I realised most guys don't talk to other guys about what their medical conditions are – especially cancer conditions.
"And most guys think the only cancer guys get is prostate cancer, or they look at television and see it as basically a woman's problem, but it's not.
"So I realised that we do really need to make men aware of the fact that cancer is a very serious thing for guys."