StyleSk8r At first rather annoying in its heavy emphasis on reenactments, this movie ultimately proves fascinating, simply because the complicated, highly dramatic tale it tells still almost defies belief.

SanEat A film with more than the usual spoiler issues. Talking about it in any detail feels akin to handing you a gift-wrapped present and saying, "I hope you like it -- It's a thriller about a diabolical secret experiment."

Asad Almond A clunky actioner with a handful of cool moments.

Hayleigh Joseph This is ultimately a movie about the very bad things that can happen when we don't address our unease, when we just try to brush it off, whether that's to fit in or to preserve our self-image.

Munstrum_Ridcully The Flying Serpent sees the great George Zucco descending in to homicidal madness at his fiendish best, in a script well ahead of it's time. Not only does the story anticipate the theory of birds having been evolved from dinosaurs (which at this time were still thought to be lizards) but gives the tragic antagonist complex psychological, guilt driven motivation and a tragic final demise.WARNING *SPOILERS*The Zucco character on discovering the tomb and treasure chamber of Montezuma finds the still living guardian of the tomb, a "missing link" between birds and reptiles, once worshipped by the Aztecs as a living god creature. Presumably some ancient follower of the the old ways has been breeding and keeping alive the creature to guard the treasure for some three hundred years as a sacred duty, perhaps the same person who entrusted this same duty to Zucco. Golem like Zucco becomes obsessed with the treasure and though, having no interest in it monetarily, keeps it hidden simply for the joy of possessing it, whilst trying to decipher the ancient Aztec language. Unfortunately his presenting one of the creatures feathers to his wife as a gift, leads her to be killed by the monster. This drives the poor professor out of what is left of his tiny mind and sets him on a path of murder to protect his "precious" treasure at all costs. When ultimately faced with discovery and the realisation that he was about to kill his only beloved step daughter, he flees the tomb, refusing to (perhaps subconsciously) to let go of the feather that will mark him for death, a final act of self destructive punishment for his wrong doings.End of *SPOILERS*The usual PRC goof-ball, stooges appear too, though less prominently than in other PRC films, for comic relief and the model of the monster is kept in shadow or at a distance for most of the time to give it a surprising believability. Several others here have complained of visible strings and poor flying effects, well I can tell you, there are NO visible strings,( I've looked frame by frame) and the creature is far better animated than many that appeared anything up to twenty five years latter in other similar horrors(Don't believe me compare it to Mystery on Monster Island (1981), The land that time forgot (1975) or At the Earth's core (1976))Very enjoyable way to spend an hour and a bit having fun.

csteidler Archaeologist George Zucco has discovered an ancient Aztec treasure along with the mythical bird that guards it. He's mad, quite mad….He keeps the treasure hidden in a cave and visits it secretly.Back in town, his step-daughter has noticed that he's been acting strangely—disappearing for days on end, talking about some great imminent discovery. She shares her concern with an ornithologist friend….who soon thereafter is found savagely murdered, his throat cut and all of the blood drained from his body. What is up? Did the ornithologist's death have anything to do with the mysterious feather that Zucco had dropped at his house? Cut to New York: a radio station is sending (handsome young) mystery writer Dick Thorpe to New Mexico to investigate the strange crime and to broadcast daily reports from the field. As the plot thickens and bodies begin to pile up, Dick's daily remote broadcasts get better and better: "Ladies and gentlemen, there's been a murder at the studio. Professor Louis Havener was struck down by the feathered serpent as he stood at the window examining the feather we had just found....We'll be back on the air again tomorrow morning at the same time." The radio writer and the step-daughter (Ralph Lewis and Hope Kramer – not household names for me, I'm afraid) eventually team up on the investigation; however, while the young couple are ostensibly the protagonists in the story, it is unquestionably Zucco who has the meaty role in the picture.For example, why does he keep the treasure hidden? "Because it's mine. Mine, do you hear? All mine. I'm the richest man in the world!" Oh, the bird is good, too. Special flying effects combined with a dramatic music score actually combine well enough to make the attack scenes just a bit spooky.It's very silly, really not very good…but great fun nevertheless.

utgard14 One of my favorite Poverty Row movies. Yes, it's cheap. Yes it's corny. No, it's not a milestone in film achievement. What it is, though, is a camp classic featuring the always awesome George Zucco as an insane archaeologist using the Aztec bird-god Quetzalcoatl to kill his enemies. If that simple description doesn't pique your interest, then this isn't the movie for you. Of course the special effects are limited. It was a PRC movie shot on a shoestring budget. But if you can look past its limitations you will see that it's a good solid hour of fun. Recommended for all fans of George Zucco or 1940s horror movies in general.

MartinHafer This is a completely craptastic film with absolutely nothing going for it. Yet, oddly it has an overall score of 5.0 on IMDb currently--and I just can't see why. After all, the film is made by PRC--perhaps the worst of the Poverty Row film studios. And, on top of that, it has perhaps the dumbest plot of any of their films--and that's saying a lot!! A maniac (are there any other types in these films playing lead?!) has discovered a creature--a flying serpent who was apparently THE Quetzelcoatl from Aztec mythology. However, unlike THE Quetzelcoatl of the Aztec tales who was able to devour planets, this flying serpent is more like the size of a flying Dalmatian. How a flying reptile the size of a medium-sized dog is scary is anyone's guess. And, while I think about it, having it take off and land like a motorized plane AND seeing the wires suspending it is amazingly dumb--even for a 4th rate production! Being a maniac, George Zucco is intent on using the beast to both kill off his enemies as well as protect the area in which the treasure of Monteczuma is supposedly buried. Eventually, though, a wise-guy radio announcer puts two and two together and is able to turn the tables on Zucco--leading to a silly and happy conclusion--happy because it puts this dopey movie to the test.Overall, even for Zucco completists, this will be a very tough film to take. It has absolutely nothing going for it--a dumb script, bad acting and a rehashed plot that manages to make the worst of "The Bat"--the film which has been reworked into this mess. Its only value is as kitsch--a film so bad that it's good for a laugh.