Global Treasures SALVADOR DA BAHIA is a vibrant and engrossing documentary that takes its audience on a visually stunning and culturally rich journey through Salvador, the capital of the Brazilian state of Bahia. Without shedding light on any potential story twists or subplots, this description will detail the various themes, aesthetics, and intentions behind this delightful masterpiece.

The movie starts off by plunging the audience directly into the heart of Salvador, known for its tropical coastline and exuberant carnival scene. This city, fondly referred to as the 'heart of the Afro-Brazilian culture,' forms the backdrop of the film and sets up the documentary's richness of cultural texture.

Salvador, with its old-world charm entwined with a rich cultural tapestry, captures the viewers' attention right at the onset. The movie follows the footsteps of the history and heritage of the city, which embodies elements of the colonial, modern, and postmodern era. The city's charming colonial architecture, cobblestoned streets, and Baroque Churches work their magic onscreen, creating a perfect setting for exploring the city's rich history.

The film does an incredible job at bringing Salvador's diverse cultural identity to life. This culture is a unique blend of African, native Indian, and Portuguese influences, which is portrayed through the city's culinary scene, music, dances like the capoeira, religious traditions, and more. The documentary showcases these aspects with exceptional detail, making it almost feel like you can taste the 'Acarajé,' hear the rhythms of the African drums, and immerse yourself in the spectacle of the city's vividly colorful carnival.

The film also takes a dip into Salvador's religious diversity and delves into the city’s religious significance. It is home to the Candomblé religion, a mix of African spiritual traditions, Catholicism, and indigenous South American rituals. The film provides a glimpse into this unique harmony of various faiths living side by side, presenting a stirring depiction of unity in diversity.

Salvador’s annual carnival, one of the most celebrated events worldwide, is an essential part of the documentary. Salvador DA BAHIA showcases the event in all its glory and energy, the dancing crowds, vibrant costumes, and joyous spirit. It presents the carnival not just as a celebration, but also as a significant cultural event, symbolizing the city's resilient spirit and unity.

The documentary also explores Salvador's prominent historic landmarks, such as the splendid Baroque-styled Sao Francisco Church and the striking Lacerda Elevator, an iconic public elevator connecting the upper and lower city. It provides heritage enthusiasts with a tour into the city’s colonial past, showing the strong Portuguese influence on the architecture and cityscape of Salvador.

While painting a culturally vibrant picture of Salvador, the documentary doesn't shy away from portraying the social disparities in the city, thus adding a layer of thought-provoking realism to the film. Despite the vibrant culture, economic inequalities are rife, which the documentary starkly highlights.

Visually captivating with its extensive aerial shots and cinematic filming of Salvador's landscapes, Global Treasures SALVADOR DA BAHIA feels like a love letter to the city. The documentary's measured pace allows the audience to bask in the richness of the city's vibrant culture and history. Spectacular cinematography and an engaging narrative make it a visual treat for viewers.

In summary, Global Treasures SALVADOR DA BAHIA isn't merely a travel documentary. It serves as a deep dive into the heart of Salvador, offering an immersive cultural, historical, and socio-economic journey that preserves the spirit of the place in a time capsule of a movie.

While the journey through the vibrant city of Salvador is primarily visual, the filmmakers’ expert use of sound and music brings an added dimension to the viewing experience. Authentic local music, ambient sounds of markets, and celebrations create an audio landscape that perfectly complements the film’s visual richness.

All of this combined makes Global Treasures SALVADOR DA BAHIA an engaging, enriching, and enlightening experience that paints a vivid picture of Salvador. It leaves audiences with a deeper understanding and appreciation for the city's unique culture and history, and, most importantly, with the feeling of having been there.