Ancient Illuminati: Riddles in Stone is a documentary-style film that fuses the curiosities of history, architecture, politics, and conspiracy. As the title suggests, the film delves deep into myriad mysteries encapsulated in the structures of stone across the globe, which supposedly bear the marks of the enigmatical organization called the Illuminati. The movie includes insights from Buff Parry and Dr. Stan Monteith, both historians and researchers famous for their expertise in secret societies and the theories that surround them.

The film is structured around the concept of understanding the elements of symbolism and hidden messages which are allegedly encrypted into structures of historical significance. These structures range from ancient pyramids to modern architectural marvels, and the film argues that each bears a certain resemblance or carries a cryptic message from the Illuminati.

As the movie progresses, the viewer is engaged in an absorbing journey that weaves through diverse cultures, time periods, and geographical locations. Riddles in Stone is not merely a documentary about architectural marvels; it promises an immersive experience into the heart of a universe teeming with occult mysteries, cryptic symbols, and enigmatic societies.

Buff Parry, a known historian and expert in astrological symbolism, plays a significant role in the film's narrative. His explorations primarily revolve around decoding the cryptograms supposedly embedded in these edifices. He presents his interpretations of the designs, numeric combinations, and astrological alignments unique to the structures examined. Parry’s perspectives infuse astronomical analogies, reaching beyond the earthly realm into celestial mysteries alleged to be pivotal to the Illuminati.

Apart from Parry, we also have Dr. Stan Monteith, an internationally recognized expert in secret societies and conspiracies. With his authoritative address, Dr. Monteith sheds deeper light on the formation, evolution, and obscure practices of the Illuminati. The in-depth explanation of the Illuminati’s beliefs, rituals, and influence on society broaden the viewer’s perspective, challenging preconceived notions about history, power hierarchy, and secret societies.

A significant part of the film concerns itself with floating the idea of the Illuminati's profound influence over major historical events. Speculations are made about the secret society's imprint on large-scale decisions and how these could have shaped milestones of human history - both in the backdrop of architectural significance and beyond.

Presented with creative storytelling and cinematic techniques, Ancient Illuminati: Riddles in Stone ensures its potency as an intriguing exploration rather than a simple documentation. It includes interviews, field explorations, comparative visual illustrations, and expert opinions to build its narrative.

However, it's important to note that the film doesn't claim to present an absolute or universally accepted version of the truth. Instead, it shows an amalgamation of various theories and interpretations, with the primary intent to intrigue and provoke thought in the viewer. Therefore, the film tends to be an open-ended probe rather than a definitive statement about the Illuminati or their supposed influence over architectural structures throughout history.

In essence, Ancient Illuminati: Riddles in Stone provides a fascinating exploration into the realms of mystery, history, and architecture. Starring Buff Parry and Dr. Stan Monteith, this film is sure to pique the interest of viewers as they journey through its labyrinth of conjectures. While it may not appeal to those strictly adhering to historical facts and widely accepted interpretations, the movie certainly promises a riveting ride to those open to theories beyond conventional understandings of history and architecture. It offers a perspective that may well serve to broaden the horizons of thought, encouraging viewers to question and investigate the hidden depths of our past.