The ‘Imitation Game’ kicked-off the rain-soaked, BFI London Film Festival this week. Fans stood outside for hours to meet the film’s stars, Benedict Cumberbatch and Keira Knightley, who were both in attendance. The film stars Cumberbatch as the English mathematician and logician, Alan Turing, who helmed the team that was responsible for cracking the Enigma code during World War II.

THE IMITATION GAME stars Benedict Cumberbatch (Star Trek Into Darkness, TV’s Sherlock) as Turing and Keira Knightley (Atonement) as close friend and fellow code breaker Joan Clarke, alongside a top notch cast including Matthew Goode (A Single Man), Mark Strong (Tinker Tailor Soldier Spy), Rory Kinnear (Skyfall), Charles Dance (Gosford Park, TV’s Game of Thrones), Allen Leech (In Fear, TV’s Downton Abbey) and Matthew Beard (An Education).

Morten Tyldum directed the film; Graham Moore wrote the screenplay based on the popular book written by Andrew Hodges. The film is set to premiere on November 21 here in the United States.