The film "Pressure" explores the true story of Group Captain James Stagg, a Scottish meteorologist whose accurate weather predictions played a pivotal role in the Allied decision-making for the D-Day invasion.

The film, adapted from David Haig's stage play, stars Andrew Scott as Stagg, who advised General Dwight D. Eisenhower, portrayed by Brendan Fraser, against launching Operation Overlord on the initially planned date of June 5, 1944. Stagg's analysis indicated a severe storm brewing in the Atlantic, which would have made the invasion conditions, with waves potentially reaching 15 feet, disastrous.

Eisenhower and other high-ranking officials, including General Bernard Montgomery (Damian Lewis), were reportedly aghast at the prospect of delaying the colossal military operation, fearing that any delay would jeopardize its secrecy and potential success. Montgomery is depicted as vehemently opposing the postponement, questioning Stagg's responsibility if the war were lost.

Adding to the tension, Stagg faced conflicting forecasts from Colonel Irving Krick (Chris Messina), a US meteorologist who predicted clear weather based on historical patterns. Stagg, however, maintained his assessment, noting that Krick's previous forecasts were made under more stable weather conditions.

The film opens with a cinematic depiction of the catastrophic rehearsal Exercise Tiger at Slapton Sands in April 1944, where over 700 American soldiers perished, a memory that continued to haunt Eisenhower. This event reportedly intensified the pressure on Eisenhower to either rely on Stagg's advice or dismiss it, forcing him to prepare contingency statements for both success and failure.

Director Anthony Maras is credited with transforming the story into a thriller, despite the inherently theatrical nature of weather-related dialogue. The performances of Scott, Fraser, Lewis, and Kerry Condon, who plays Eisenhower's confidante Kay Summersby, are highlighted as crucial to the film's compelling recreation of these real events.

While historians may debate certain aspects, such as the nature of Summersby's relationship with Eisenhower, the film focuses on the intense pressure faced by Stagg and Eisenhower. The film also touches on the physical stature of both men, noting that in reality, Stagg was taller than Eisenhower, a contrast to their on-screen portrayal.

"Pressure" opened in cinemas on September 8, 2026.