Yes, Eugène Boudin is often regarded as a precursor to the Impressionists and played a significant role in shaping the movement. He was one of the first artists to paint en plein air (outdoors) and influenced many of the Impressionists, including Claude Monet. Boudin exhibited his work alongside the Impressionists, particularly in the early exhibitions, and his techniques and approach to capturing light and atmosphere were integral to the development of Impressionism.

Édouard Manet, often considered a precursor to the Impressionist movement, never officially exhibited with the Impressionists themselves. Although he played a crucial role in influencing the group and their style, he was more aligned with the Realist movement. Manet's works were featured in the Salon and he had a complex relationship with the Impressionists, such as Claude Monet and Pierre-Auguste Renoir, who admired his work. He attended their exhibitions and supported their efforts, but he did not participate in the official Impressionist exhibitions.

"The Impressionists" is a documentary film that explores the lives and works of the Impressionist artists. You can typically find it available on platforms like Amazon Prime Video, Google Play, or iTunes for purchase or rental. Additionally, check your local library or streaming services that may have art documentaries. For the most accurate availability, it’s best to search on a site like JustWatch, which aggregates streaming options based on your location.

The movie "The Impressionists" focuses on five key figures of the Impressionist movement in art. These are: 1. **Claude Monet** - Often considered the father of Impressionism, known for his landscape paintings and the series on water lilies. 2. **Edgar Degas** - Renowned for his depictions of ballet dancers and his innovative use of movement. 3. **Pierre-Auguste Renoir** - Famous for his vibrant use of color and light, particularly in scenes of social gatherings. 4. **Camille Pissarro** - A mentor to many Impressionists, known for his landscape and rural scenes. 5. **Berthe Morisot** - The only female founding member, celebrated for her intimate portrayals of women and domestic life.