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Highly Dangerous (1950)

Not Rated | | Action, Thriller | 12 October 1951 (USA)
A British lady entomologist travels to a Balkan country to look into germ warfare trials using various bugs as carriers.


Roy Ward Baker (as Roy Baker)


Eric Ambler
1 nomination. See more awards »


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Complete credited cast:
Margaret Lockwood ... Frances Gray
Dane Clark ... Bill Casey
Marius Goring ... Commandant Anton Razinski
Naunton Wayne ... Mr. Hedgerley
Wilfrid Hyde-White ... Mr. Luke - British consul (as Wilfrid Hyde White)
Eugene Deckers ... Alf - the 'contact'
Olaf Pooley Olaf Pooley ... Detective-Interrogator
Gladys Henson Gladys Henson ... Snack Bar Attendant
Paul Hardtmuth Paul Hardtmuth ... Priest
Michael Hordern ... Owens - Lab Director
George Benson George Benson ... Sandwich Stand Customer
Eric Pohlmann ... Joe - the bartender
John Horsley ... Customs Officer
Patric Doonan Patric Doonan ... Customs Man
Joan Haythorne Joan Haythorne ... Judy


When British Intelligence discovers that an Iron Curtain country is developing insects as weapons, they persuade eminent entomologist Frances Gray (Margaret Lockwood) to get into the country to collect some specimens. On arrival, her cover is almost immediately blown and her contact murdered. The future looks grim for her and also perhaps for the world. Written by J-26

Plot Summary | Add Synopsis


... to have ... hold or HATE! See more »


Action | Thriller


Not Rated | See all certifications »






Release Date:

12 October 1951 (USA) See more »

Also Known As:

Armas secretas See more »

Company Credits

Production Co:

Two Cities Films See more »
Show more on IMDbPro »

Technical Specs


Sound Mix:

Mono (Western Electric Recording)

Aspect Ratio:

1.37 : 1
See full technical specs »

Did You Know?


Theatrical movie debut of John Horsley (Customs Officer). See more »


At about 1:16, as Clark/Lockwood are about to emerge from the woods, they have a short dialogue re the insects and why/how/etc. Immediately after Clark says,"They're just insects," he rises from a squatting position and what sounds like a mellifluous bit of flatulence can be noted. See more »


Bill Casey: [referring to police Commandant Razinski] There's a rumor going around that he had a mother.
See more »


Referenced in The Player (1992) See more »

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User Reviews

a nice surprise
4 June 2008 | by blanche-2See all my reviews

Margaret Lockwood is Frances Gray, a scientist who takes on a government assignment that is "Highly Dangerous" in this 1950 film also starring Dane Clark, Wilfred Hyde-White and Marius Goring. Frances Gray works with bugs, so the government asks her to go to a country of opposing ideology and get a sample of bugs being used by them, possibly for germ warfare. At first, she says no, and then relents and travels to this unnamed country posing as a tour director checking out possible tour locations. Her cover is blown immediately by the chief of police (a heavily disguised Goring) who is on the train with her, and shortly afterward, her contact is killed, and she is arrested, drugged and questioned. The head of the British consulate, tipped off by a newspaper reporter she met previously (Clark) secures her release.

The film starts out as a drama, but the mood lightens once she's out of prison. Under the influence of the drug she's been given, she plots a way to get into the lab based not on reality but on the antics of a radio spy on a program her nephew likes. The reporter knows it won't work, but when the first part of it actually does, he goes along.

Margaret Lockwood went through several phases during her career - this was her mid period, after the ingénue of "The Lady Vanishes" and before the older woman in "Cast a Dark Shadow." She does a good job and looks very attractive. The stronger role was Clark's - he was being groomed as another John Garfield but never quite got there - he's very good, handling both the dramatic and the comic aspects well. Goring is a far cry from Victoria's husband in "The Red Shoes" -this seems an odd role for him, but he's excellent.

An odd film but, if taken for what it is, a good one.

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