**"Forgotten Island" opened to a disappointing $13 million domestic in late September, below modest $15–17 million tracking, finishing fifth amid a crowded frame headlined by the "Avengers: Endgame" re-release.** Strong critical acclaim (95% on Rotten Tomatoes) and audience scores (A CinemaScore, 97% PostTrak) highlight word-of-mouth potential in a genre where originals have struggled, yet the $80 million budget film drew limited broad awareness outside Filipino and Asian audiences, where it performed better. Traders see a typical 40–55% second-weekend drop landing most likely in the 6–7 million range, with upside hinging on whether positive reviews translate into sustained family turnout before October's limited animated competition arrives; steeper declines could push it toward sub-6 million if marketing momentum fades quickly.