Movie

Day One

“This day will go down in history as a black mark against mankind.”

★ 6.2(9)19892h 21m

Day One isn't available to stream, rent or buy in Mexico right now. Availability changes often, so check back soon. Availability checked 10 June 2026.

Where to watch Day One

🇲🇽 Mexico

No streaming, rental or purchase options are listed in Mexico right now. Availability changes often — try switching your region in the header.

Good to know

Director: Joseph Sargent
Release date: 1989-05-12
Runtime: 2h 21m
Language: English
Status: Released
Country: Canada
Studio: World International Network (WIN)

About Day One

Day One is a 1989 movie in the History, Drama and TV Movie genres, directed by Joseph Sargent, starring Brian Dennehy, David Strathairn and Michael Tucker. It has a runtime of 2 hours 21 minutes. It holds an average rating of 6.2/10 from 9 viewers. Below you can see where to watch Day One in Mexico — across streaming, rental and purchase options — along with the full cast, trailer and viewer reviews.

Synopsis

Hungarian physicist Leo Szilard leaves Europe, eventually arriving in the United States. With the help of Einstein, he persuades the government to build an atomic bomb. The project is given to no-nonsense Gen. Leslie Groves who selects physicist J. Robert Oppenheimer to head the Los Alamos Laboratory in New Mexico, where the bomb is built. As World War II draws to a close, Szilard has second thoughts about atomic weapons, and policy makers debate how and when to use the bomb.

Cast

Brian Dennehy

Gen. Leslie Groves

David Strathairn

J. Robert Oppenheimer

Michael Tucker

Leo Szilard

Hume Cronyn

James F. Byrnes

Richard Dysart

President Harry S. Truman

Hal Holbrook

Gen. George Marshall

Barnard Hughes

Henry Stimson

John McMartin

Dr. Arthur Compton

David Ogden Stiers

Franklin D. Roosevelt

Anne Twomey

Kitty Oppenheimer

Lawrence Dane

Ron Frazier

Colonel Pash

Frequently asked questions

Where can I watch Day One in Mexico?+

Day One is not currently listed on any streaming, rental or purchase service in Mexico. Availability changes often, so check back or switch your region.

Is Day One on Netflix?+

Day One is not on Netflix in Mexico right now.

How long is Day One?+

Day One has a runtime of 2 hours 21 minutes (141 minutes).

Who stars in Day One?+

Day One stars Brian Dennehy, David Strathairn, Michael Tucker, Hume Cronyn and Richard Dysart.

When did Day One come out?+

Day One is a 1989 movie directed by Joseph Sargent.

What genre is Day One?+

Day One is History, Drama and TV Movie film.

Who directed Day One?+

Day One was directed by Joseph Sargent.