I should also consider the technical feasibility. Creating a virtual party planner or VR experience might require more resources, but a quiz or trivia can be done with less. The user didn't specify the resources, so maybe a balance is needed.

"Design Your Bacchanal" Virtual Party Planner

But the user might want a single feature, not multiple. Since the original instruction says "generate feature", maybe focus on one main one. Let's pick the virtual bacchanal planner as the primary feature. It's engaging and aligns with the movie's theme of wild parties. It allows users to create, customize, and share their own bacchanal events based on the movie, which would encourage interaction and sharing on social media.

Putting it all together, perhaps the best features are a mix of interactive and educational elements. For example, a trivia quiz, a character analysis section, a virtual bacchanal planner, and a history of bacchanals related to the film. That covers engagement, education, and fun.

Wait, maybe the user wants a feature that enhances the viewing experience, like a companion app that provides context during the movie. For example, while watching, users can tap to get information about the historical bacchanal references, the locations shown, or the music played.

First, features for movies can be interactive elements. Like a trivia quiz about the movie, a behind-the-scenes feature, or maybe a virtual tour of the movie's locations. But the user might want something more specific. Since it's a bacchanal theme, maybe something related to the parties depicted?

Also, considering the title's focus on adolescents in the 19, maybe a character analysis feature where users can delve into each teenager's background, motivations, and how the bacchanal events affect them. That could add depth.