Poor physics student Marie is studying at the Sorbonne in 1890s Paris. One of the few women studying in her field, Marie encounters skepticism concerning her abilities, but is eventually offered a research placement in Pierre Curie's lab. The scientists soon fall in love and embark on a shared quest to extract, from a particular type of rock, a new chemical element they have named radium. However, their research puts them on the brink of professional failure.
Greer Garson
Walter Pidgeon
Henry Travers
Albert Bassermann
Robert Walker
C. Aubrey Smith
May Whitty
Victor Francen
Elsa Bassermann
Reginald Owen
Van Johnson
Margaret O'Brien
James Hilton
Mariska Aldrich
Tony Carson
Ruth Cherrington
Ray Collins
Guy D'Ennery
George Davis
Harold De Becker
Franz Dorfler
Justine Duney
Tay Dunn
William Edmunds
Nestor Eristoff
Al Ferguson
Edward Fielding
Howard Freeman
Linda Lee Gates
Marie Louise Gates
Lisa Golm
Ilka Grüning
Lumsden Hare
Teddy Infuhr
James Kirkwood
Isabel La Mal
Gene Lockhart
Miles Mander
George Meader
Dickie Meyers
Noel Mills
Leo Mostovoy
Alan Napier
Moroni Olsen
María Pagés
Gigi Perreau
Francis Pierlot
Nita Pike
Dorothy Raye
Almira Sessions
Arthur Shields
Wyndham Standing
Ray Teal
Charles Trowbridge
Michael Visaroff
Marek Windheim
Frederick Worlock
Eustace Wyatt