Alfred Hitchcock's "Notorious"

Ingrid Bergman (gowns by Edith Head), Cary Grant, Claude Rains. 

The action opens in Miami, Florida, "Three-Twenty, P.M., April the Twenty-Fourth, Nineteen Hundred and Forty-Six..."

The video above is Part 1 of 11, which means you can watch the entire movie on YouTube if you are so inclined.