Movie guide
Flashback (2021): movie guide
Flashback (2021) is a Thriller, Mystery running about 97 minutes. It holds a TMDB score of 5.9/10 from 342 votes. Notable cast includes Dylan O'Brien, Hannah Gross, Emory Cohen, Keir Gilchrist. Cinema Box covers trailers, cast, and details for discovery — not full streaming.
- Released: 2021-06-03
- Runtime: 97 min
- TMDB: 5.9/10
- Genres: Thriller, Mystery
Last updated: 2026-11-11 · First listed: 2021-06-03
Get the official Android app on Google Play
What is Flashback about?
Frederick Fitzell is living his best life—until he starts having horrific visions of Cindy, a girl who vanished in high school. After reaching out to old friends with whom he used to take a mystery drug called Mercury, Fredrick realizes the only way to stop the visions lies deep within his own memories, so he embarks on a terrifying mental odyssey to learn the truth.
Cast highlights
Flashback features Dylan O'Brien, Hannah Gross, Emory Cohen, Keir Gilchrist, Maika Monroe, Liisa Repo-Martell. Open the Cinema Box title page for the full cast list and character credits.
Key facts
Release date: 2021-06-03. Runtime: 97 minutes. TMDB score: 5.9/10 (342 votes). Genres: Thriller, Mystery. Original language: en. Status: Released.
Discover Flashback on Cinema Box
Cinema Box is a movie and TV discovery app for Android. Use it to browse Flashback, watch official trailers when available, save titles to your list, and plan what to watch — without hosting or streaming full films.
Frequently asked questions
- What genre is Flashback?
- Flashback is listed as Thriller, Mystery on TMDB.
- How long is Flashback?
- Flashback runs about 97 minutes.
- Who stars in Flashback?
- Cast highlights include Dylan O'Brien, Hannah Gross, Emory Cohen, Keir Gilchrist, Maika Monroe, Liisa Repo-Martell.
- Does Cinema Box stream Flashback?
- No. Cinema Box is discovery-only — trailers, details, ratings, and watchlists. It does not host or stream full movies.
- Where can I track Flashback?
- Open the Flashback page on cinemabox.app or install the official Cinema Box Android app from Google Play for watchlists and discovery tools.
