There are a number of things about this film that set it apart. It moves at a good pace with excellent dialog. It is actually accurate in its portrayal of operating room gases and procedures. The narrator does not make an appearance for at least ten minutes, which is quite unusual all by itself. Finally, it actually provides the movie-goer with all the clues necessary to solve the crime.The cast selection is also quite good. Alastair Sim (as Inspector Cockrill) is smart, abrasive, and eccentric. Sally Gray as Nurse Frederica 'Freddi' Linley, Trevor Howard as Dr. Barney Barnes, Rosamund John as Nurse Esther Sanson, Leo Genn as Mr. Eden, Judy Campbell as Sister Marion Bates, and Megs Jenkins as Nurse Woods all turn in excellent performances. Judy Campbell did not have many movie roles due to her statuesque build and intense good looks. Susan Grey was almost too pretty compared to the other female characters.Trevor Howard (Dr. Barnes) and Leo Genn (Mr. Eden (surgeon)) turned in outstanding performances as doctors with grudges against each other. In fact, all of the characters were pitched against each other quite often, exposing their various and often opposed personalities, motivations, and morals.Though all the clues required to solve the mystery were present, there were also enough "red herrings" to make the deduction difficult.Wilkie Cooper did an outstanding job of cinematography by providing well-lit scenes that still carried a dark and sinister quality. The sense of foreboding was heightened by the occasional inclusion of a V-1 flying bomb. I should also mention that the Sound Department (too many participants to list) did an outstanding job of capturing and conveying the sound of a "buzz bomb" flying overhead and the inevitable explosion when it landed.

A great British who-done-it mystery that was charming and entertaining. A great murder mystery for the entire family with historic value woven right into the script.Alastair Sims plays Inspector Cockrill from Scotland Yard called to a hospital after a set of murders are committed. It appears that someone in the surgical ward of the hospital is killing people and the Inspector is called out to find who and why the kills are happening.Inspector Cockrill finds more than he bargained when he deals with the lives of the hospital personnel. Each person has some emotion they want hidden from the rest of the public thus making the mystery more interesting.This movie is a great mystery film. It will keep you on the edge of your seat the entire time. And the entire cast really performs beautifully as each character shows the human side of their emotion.Even with the ending kind of crowded- the film deliveries with suspense and thrills for all viewers. There is a lot of history in this film. From hospital procedures to war time fears, this movie is a gem to watch. A good who-done-it flick.

This movie is unusually dull for the initial 40 lackluster minutes until Alistair Sim shows up. When he does, its in a setpiece with a perfectly choreographed bit of slapstick that seems to signal a more imaginative, engaged type of film-making than we've been looking at. But despite a few ravishing moments of camera-work in the movie, still more convention confirms that that was all you get! It's potential dissipates as it plunges through narrower and narrower scales until all that's left is comparing it to other mysteries. It's a bit naff when a b&w movie mentions the color green, pounding you over the head with the title clue. There is craft here, but nothing to transform it into art. A viewer may find intrigue in how a region downstream interprets a Hollywood genre; in this case "noir" filtered through the British investigator tradition.The quaint rural England milieu and sets will stick in your mind. But the movie never becomes the above average film that it's production design hints at, and one wonders why the extra effort was made. Its regional setting reminded me of P&P's A Canterbury Tale. Perhaps it's the very unflappability of the English that makes this exercise so unengaging. Characters can barely be bothered to feel threatened or excited. The psychology is paper deep.

Green For Danger is about a pair of murders that take place in a British hospital in post World War II Great Britain. One was a patient that died on the operating table, the other is of one of the attending nurses who says that she has evidence that the patient's death was indeed foul play. Unfortunately she's stabbed to death before revealing her evidence.Scotland Yard sends Inspector Alastair Sim to investigate and he's got a closed set of operating suspects that include hospital staff, Sally Gray, Trevor Howard, Leo Genn, and Rosamund John. What could it all be about?As is usual the motive is kind of far out, but as Sim says we're not dealing with a normal functioning mind here. Sim is the real show in Green For Danger, he's a British version of Lieutenant Columbo thirty years ahead of his time. He's constantly getting under foot and a real annoyance to the hospital staff. But he has a knack for ferreting out information.Of course he does in the end find out the who and the why, but Sim does manage to fumble the arrest of his perpetrator in an unusual way. But as he says in the end it wasn't his best day on the job.For those who like the droll characters portrayed by Alastair Sim on the screen, Green For Danger is a must for you.