Review by mim-8

I had no doubt that this effort from prolific French director Henry Verneuil ("Le Clan Des Siciliens","Mélodie En Sous-Sol",and terrific "I... comme Icare)", will be better than your usual cold war spy thriller. This is a sort of movie that mature film fan expects to see, no James Bond nonsense, no Russians that only speak broken English, no Russians with M16 rifles and ridiculous plots. This movie rings true, even 60's and 70's strongmen such as Yul Brynner is very good and very plausible as Soviet KGB colonel Alexei Vlassov, and the supporting cast of greats: Henry Fonda, Dirk Bogarde and Philippe Noiret, wee the web of high echelon government espionage, that keeps viewer guessing to the end. French title "Le Serpent" is much better than unfortunate English one ("Night flight from Moscow),that has nothing to do with plot whatsoever. Le Serpent or the serpent is a snake in the grass that strikes whenever it feels threatened. It's poison is deadly and quick, but ultimately it has to shed skin and reveal it's trail. Look for this great film if you're a fan of intelligent spy films. Satisfaction is guaranteed.