TORONTO (AP) — With characters like Sherlock Holmes, Julian Assange and Stephen Hawking, Benedict Cumberbatch has accumulated a filmography littered with high IQs.
Characters of analytical prowess and fast-deducting intellect have made Cumberbatch something like the ultimate quicksilver mind of the digital age. No actor has made computation sexier.
Cumberbatch, relaxing in a Toronto hotel room, quickly points out that he has — like his spineless plantation owner of "12 Years a Slave" or his painfully shy son in "August: Osage County" — played some "pretty dull, ordinary" people: "Let's say us. I've done us, version of me and you," he says.
And yet Cumberbatch is clearly drawn to highly complex, real-life characters under extraordinary circumstances — roles that demand technical preparation (an accent, a stammer), considerable biographical research and a precision of approach. Puzzles to be solved.
"Maybe that's a fair one," he says, turning over the idea. "Maybe I do. I think for the reasons people are attracted to those characters, as well. You can never fully understand them. There's always a certain amount of enigma or mystery to them."
Cumberbatch's latest riddle is Alan Turing, a hugely important figure to World War II code-breaking and a computer science pioneer. "The Imitation Game," which opens in select theaters Friday, is about how Turing and others at Britain's Bletchley Park solved the seemingly unbreakable Enigma code used by the Germans throughout WWII. Winston Churchill said Turing made the single greatest contribution to the war, but his achievement wasn't widely recognized until recently, when the code-breaker's work was declassified.
"Considering all of that, why the (expletive) isn't he on the front cover of every school history textbook?" says Cumberbatch. "He's a properly important figure in our culture."
"The Imitation Game" is only partly a traditional wartime thriller. It's also a tragedy of social close-mindedness. Turing was gay at a time when homosexuality was illegal in Britain. He was convicted of indecency in 1952 and then chemically castrated. Two years later, just 41, he killed himself by eating a cyanide-laced apple (though there remains some debate about his intentions).
"I see somebody who was tragically damaged and continually battered by an intolerant, non-understanding world — the very world he was trying to save and liberate from fascism," says Cumberbatch.
"The Imitation Game," directed by Norwegian filmmaker Morten Tyldum and written by Graham Moore, is a kind of ode to outsiders. Cumberbatch's Turing isn't just different because of his sexuality, he's utterly anti-social. Rarely making eye contact, etiquette disinterested the single-minded Turing. "I don't care what's normal," he says in the movie.
His Bletchley collaborators also included Joan Clarke (Keira Knightley), a rare female in that world. Knightley says the film "is about trying to celebrate differences because of the tragedies that can occur when you destroy the people who aren't like you."
The film's mix of historical drama with contemporary resonance has won it acclaim on the festival circuit and positioned it as an Oscar contender. Especially lauded has been Cumberbatch's depiction of a mathematical mind wracked by repression.
"He can play so many emotions at the same time. There's strength and vulnerability. There's arrogance and there's this lonely boy," says Tyldum. "It's not every actor that can play a genius."
Knightley, a friend of Cumberbatch's since the two worked together on "Atonement," calls him "the sort of actor who never tries to simplify anything."
"If it's a complex person, he wants to dive into all the complexities and try to get all the nuances out," Knightley says. "You completely believe him in any of these roles, whether it's Assange, Stephen Hawking, whoever. He's very intelligent, but he's got a curiosity you can see and it sort of burns through his performances."
Cumberbatch, however, makes no claim to cleverness. Of Sherlock, he credits its writer: "Steven Moffat is the brain. I just say it fast."
With no footage to draw from for Turing's manner and speech, Cumberbatch met with his relatives. The actor began many of his days jogging. (Turing was an elite runner.) And he worked at crafting a plausible stutter for the famously awkward mathematician. Still, playing a man of such brainpower was challenging.
"I'm not stupid but I'm not that smart. So I can at least lend something of that within the performance, like maybe the alacrity of thought, making fast connections," says Cumberbatch. "But when you actually start talking about the language he used to get to those stunning conclusions, you might as well ask me to write my name in Mandarin."
After "The Imitation Game," the 38-year-old Brit, who recently announced his engagement to Sophie Hunter, is ready for a simpler equation.
"I've done evil. I've done good. I've done smart," says Cumberbatch. "I haven't done much sexy, sexy, really. I know Sherlock's some people's cup of tea. I'd like to do a romantic comedy. I really would."