The Imitation Game has played a huge part in reclaiming the priceless contribution made by Alan Turing during World War II, with Benedict Cumberbatch deservedly receiving strong notices for his performance as the brilliant and tragic scientist.

For a film that celebrates mathematical genius, it is perhaps fitting that some new analysis is revealing just how stellar its UK box office opening has been. Morten Tyldum’s film outperformed expectations with its eye-catching debut for Studio Canal at the UK box office — the first territory the film has been released in — with $4.2 million from 465 theatres and counting.

That starry opening is even more impressive considering it came out against strong holdover Interstellar, still holding on to the top spot. The Imitation Game achieved a very high 90% “definite recommend” from its core audience, according to exit poll figures. Its opening was 107% higher that that of Argo, 81% higher than Philomena and 26% higher than The Iron Lady following its debut.

The film’s robust UK opening also gives it a good platform ahead of its domestic release November 28 through The Weinstein Company.

“This film is carried by an ensemble of some of the finest British actors out there and pays homage to one of the most innovative, important men in the country’s history, so we couldn’t be more excited to see it open so well in the UK,” Harvey Weinstein told Deadline.