NORMANDY — The film Pressure, scheduled for release on May 29, 2026, dramatizes the critical role meteorologists played in the decision to delay the D-Day invasion from June 5 to June 6, 1944. Directed by Anthony Maras, the movie is a lightly fictionalized account of the high-stakes forecasting that shaped one of World War II’s most pivotal operations.

Brendan Fraser portrays Gen. Dwight D. Eisenhower, while Andrew Scott plays British meteorologist James Stagg, whose team’s analysis led to the postponement. The invasion had originally been set for June 5, but weather forecasts indicating an approaching storm prompted Eisenhower to delay by 24 hours. In contrast, American meteorologist Irving Krick, portrayed in the film as relying on historical trend analysis, predicted favorable conditions for June 5. “Mark my words, D-Day will be calm and sunny,” Krick says in the movie.

European meteorologists, using real-time atmospheric measurements gathered from Newfoundland to Ireland, provided the data that signaled deteriorating conditions. Their approach, which included launching weather balloons to collect upper-atmosphere information, ultimately informed Stagg’s recommendation to delay. After the war, the U.S. adopted this method of forecasting based on real-time data, improving the accuracy of severe weather predictions.

Historian Frank Blazich, a military historian at the Smithsonian's National Museum of American History, emphasized the operational demands of the invasion. “Eisenhower needed a really strong weather forecast. You need clear weather and a full moon to bring in aircraft at night,” as well as clear skies and no low clouds, so ships could see targets on shore clearly.

James Taylor, principal curator at the Imperial War Museums in the United Kingdom, said the meteorologists’ importance was clear. “They had an absolutely key role to play in the planning of D-Day,” Taylor says. The film closes with a quote attributed to Eisenhower: “We had better meteorologists than the Germans.” However, historians Taylor and Frank Blazich noted they were unaware of any original documents or firsthand accounts verifying that Eisenhower actually made the statement.