# Avengers: Endgame Encore topped Weekend Box Office

*Culture. 46% certain. Sunday, 27 September 2026*

> Speculative fiction assembled from prediction-market prices. This has not happened.

**Avengers: Endgame Encore led the Weekend Box Office while Heart of the Beast opened with $20-23 million and Primetime earned $16-19 million.**

The domestic Box Office for the Weekend of 27 September was led by Avengers: Endgame Encore. The Marvel sequel reclaimed the top spot despite the release of several new titles. New releases posted more modest openings.

Avengers: Endgame Encore secured the number-one position across the nation. Its earnings outpaced those of the freshly launched films.

Heart of the Beast opened its run with earnings estimated between $20 million and $23 million. The figure placed the film among the higher-grossing new releases of the Weekend Its performance suggested solid audience interest.

Primetime earned an Opening Weekend total in the $16 million to $19 million range. The mid-range result placed it behind Heart of the Beast but ahead of smaller titles. The film attracted a steady stream of viewers.

Forgotten Island recorded less than $13 million in its Opening Weekend the sub-$13 million figure made it the lowest-grossing of the new releases. Its modest take reflected limited draw.

## Analysis

By drawing the largest audience of the Weekend, the film boosted overall Box-Office totals and provided a reliable revenue anchor for exhibitors.

The Opening figures for Heart of the Beast, Primetime and Forgotten Island indicate a tiered response to new content. Heart of the Beast's $20-23 million range shows that high-budget genre offerings can still generate sizable openings, while Primetime's $16-19 million and Forgotten Island's sub-$13 million results reveal a more limited appeal for mid-range and niche projects.

Without longer-term data it remains unclear whether the modest earnings of the newer titles will translate into sustained runs or fade quickly. Audience preferences, seasonal factors and competition from streaming platforms could influence subsequent weeks.

## What this was built from

- **"Primetime" Opening Weekend Box Office**: 16-19m, 81%; settles Sunday, 27 September 2026 (polymarket). [Market](https://polymarket.com/event/primetime-opening-weekend-box-office)
- **"Forgotten Island" Opening Weekend Box Office**: <13m, 80%; settles Sunday, 27 September 2026 (polymarket). [Market](https://polymarket.com/event/forgotten-island-opening-weekend-box-office)
- **#1 Box Office This Weekend?**: Avengers: Endgame Encore, 94%; settles Sunday, 27 September 2026 (polymarket). [Market](https://polymarket.com/event/1-box-office-this-weekend)
- **"Heart of the Beast" Opening Weekend Box Office**: 20-23m, 46%; settles Sunday, 27 September 2026 (polymarket). [Market](https://polymarket.com/event/heart-of-the-beast-opening-weekend-box-office)