Keira Knightley: “You know if there is sex in the room”

Keira Knightley can pick up on sexual chemistry.

The actress, who recently began dating Klaxons keyboardist James Righton, reckons it’s easy to spot a connection between people.

“I think you do know if there is sex in the room,” 26-year-old Keira said.

“You pick up on chemistry between people.”