MoulendraBalaji/reelhouse-movie-explorer ? reverse-engineered prompt

Build me a Flutter web app for exploring movies with a vintage old cinema feel.

I want the site to feel like a 35mm movie house, with a dark theater look, warm paper light mode, and smooth cinematic animations. It should let people browse movies, search for titles, open a movie detail page, and save things to a watchlist. Please make it responsive so it works nicely on desktop, tablet, and mobile, with a clean top nav on larger screens and a drawer on smaller ones.

It should use real movie data if an API key is available, but still work offline with a bundled list of movies so the app never feels broken. Add basic theme switching, local persistence for saved settings, and simple validation where needed. Keep the experience polished and fun, with motion and visual details that make it feel like a real movie theater app. If you need to check current Flutter or API docs, go ahead and look them up online.