O Trapalhão na Ilha do Tesouro

Two hapless fishermen, Zé Cação and Lula, stumble on proof of a smuggling operation and soon find themselves on the run from the criminals who want it back. While escaping, they cross paths with a federal agent named Carlos and the spirited young Diana, who quickly become allies. The chase mostly unfolds aboard the fishermen's boat until the notorious pirate Long John Silver appears, hunting for the other half of a treasure map. When the divided map pulls every player toward a nearby island, the film shifts into a series of comic pursuits, mistaken identities, and seaside set pieces that keep the tone light and family oriented, without giving away how it all ends.

Released in 1975, the film was directed by J.B. Tanko and adapts elements of Robert Louis Stevenson's Treasure Island, with Victor Lustosa credited for the local screenplay work. The cast features Renato Aragão as Zé Cação and Dedé Santana as Lula, joined by Mário Cardoso, Eliane Martins, and Edson Guimarães as Long John Silver.

As part of the O Trapalhões output, the picture was aimed at family audiences and did solid business in Brazil at the time, drawing crowds familiar with the troupe's onstage characters and TV sketches, though exact box office figures are scarce.

The movie sits within the Trapalhões legacy, offering a Brazilian, tongue-in-cheek take on a classic pirate story. Its mix of slapstick routines, song moments, and seaside visuals helped reinforce Renato Aragão and Dedé Santana as national comedy fixtures, and it remains a recognizable entry among fans of vintage Brazilian comedy films.

Critically the film has a mixed reputation, reflected in a modest 5.6/10 user rating from 13 votes. Viewers often point to its playful tone, straightforward moral of friendship and teamwork, and period production values, while noting the emphasis is more on laughs and family fun than on dramatic depth.