Keira Knightley's preparation for 'Anna Karenina' role scared co-stars

The 27-year-old actress revealed that during filming, her copy of the novel became filled with post-it notes.u00a0"I'm very into stationary. I think I frightened all the boys because I'd done so much homework," the Telegraph quoted her as saying.

Keira Knightley. Pic/Santa Banta

"Or rather they could at least see the homework I'd done because I go for colourful Post-it notes. It terrified them," she added.

The Oscar nominated star, plays the protagonist in Tom Stoppard's new adaptation of Leo Tolstoy's epic, Russian love story, directed by Joe Wright and co-starring Jude Law and Aaron Taylor-Johnson.

Law plays Karenina's husband Karenin in the film, while Taylor-Johnson plays the role of Vronsky, her lover.u00a0