The Great Impostor 1960

Synopsis:

Fictionalized account of Ferdinand Waldo Demara Jr., who stole or created fictional identities and worked in a variety of occupations, most quite successfully.

Directed by: Robert Mulligan
Written by: Liam O'Brien
Runtime: 112 minutes
Tagline: Will the Real Fred Demara Please Stand Up??
Cast:
Tony Curtis
Tony Curtis
Ferdinand Waldo Demara Jr. / Martin Donner / Dr. Gilbert / Ben. W. Stone / Dr. Joseph Mornay / Robert Boyd Hammnd 
Karl Malden
Karl Malden
Father Devlin 
Edmond O'Brien
Edmond O'Brien
Capt. Glover - HMCS Cayuga 
Arthur O'Connell
Arthur O'Connell
Warden J.B. Chandler 
Gary Merrill
Gary Merrill
Pa Demara 
Joan Blackman
Joan Blackman
Lt. Catherine Lacey