MANY of us turn to pricey potions and lotions as middle age approaches, but global megastar Johnny Depp has another way of keeping young – staring at carpets.
"I'm intrigued by everything," says the actor, by way of explanation.
"In fact, I am intrigued by the carpet. I've been staring at it for a while, and it's still the same. I think curiosity keeps you young beyond numbers," he adds.
Today, he's promoting The Lone Ranger, Disney's new action-adventure movie based on the classic Western TV series.
He plays Tonto, a native American warrior who battles alongside law-abiding cowboy John Reid, played by Social Network actor Armie Hammer, to avenge Reid's brother's death and bring a criminal gang to justice.
The film has a strong British cast, with Luther actress Ruth Wilson playing Reid's sister-in-law Rebecca, Tom Wilkinson as railroad tycoon Latham Cole, Helena Bonham Carter as a tough-talking saloon owner Red, and Fish Tank actor Harry Treadaway as Frank, the baddie with a penchant for wearing ladies' bonnets.
It's a fun-filled romp, with all the charging horseback chases and belting after baddies you could hope for.
Depp hasn't changed a whole lot since his breakthrough role in 1984 horror A Nightmare On Elm Street.
The actor, who recently separated from his long-time partner Vanessa Paradis, went on to further acclaim with Edward Scissorhands, Ed Wood, Fear And Loathing In Las Vegas, Charlie And The Chocolate Factory, Sleepy Hollow, Chocolat and more recently, the Pirates Of The Caribbean series.
For Tonto, who ages during the film, Depp didn't have to look too far to find his muse.
"The old man I saw in Tonto was my great-grandmother," he says.
"She did apparently have quite a lot of Indian blood [in her] and wore the braids and had tobacco down her bosom, so the idea was to sculpt me to look like her."
In the original series, being a Native American meant Tonto was never going to be a hero in his own right, something Depp and the film-makers were keen to move away from.
The actor says that, growing up, he always rooted for the masked hero's partner in crime.
"I was always flummoxed, even as a child, about the idea of Tonto being a sidekick to the Lone Ranger. I found it unappealing," he says.
As well as being a leading man, Depp's an executive producer on the film and says he was conscious of being respectful to native Indian people.
Filming saw him reunited with Pirates Of The Caribbean producer Jerry Bruckheimer and director Gore Verbinski.
He admits there were teething problems between himself and the studio when they worked on the Pirates franchise, in particular his portrayal of Captain Jack Sparrow, which he based on the Rolling Stones' Keith Richards.
"When we did the first Pirates Of The Caribbean film, they wanted to fire me so badly they could taste it," he says, laughing.
"When I spoke to one of the executives at the time, I said, 'You're right, you should fire me, but you'll have to pay me for my time!'
"They didn't know how to market Jack Sparrow, they wanted to put subtitles in. It was nothing new for me, I've always approached characters in the same way. Captain Jack Sparrow just happened to get more attention. You get away with it or you don't," he adds.
Depp hopes audiences will like his interpretation of Tonto. One thing's for sure: he put blood, sweat and tears into the role – literally, when he fell off a horse during filming.
"The horse was magnificent so I'd say the accident was a user error," he explains.