"Forgotten Island" opened below modest tracking with a $13 million domestic debut, landing fifth amid heavy competition from "Avengers: Endgame" reissues and other new releases, despite a 95% Rotten Tomatoes score and strong audience exit polls. Traders see a wide range of second-weekend outcomes because the film’s modest per-theater averages and original animated title status point to steep drops typical of recent non-franchise releases, while its Filipino cultural resonance and positive word-of-mouth could provide modest legs in a fall corridor with limited animated competition. The market’s spread across 5–9 million brackets reflects uncertainty over how quickly the $80 million production will fade versus any sustained family or multicultural turnout heading into the October frame.