Athbhutha Dweepu offers a visually engaging fantasy tale that attempts to blend adventure with elements of folklore. The story is imaginative, taking viewers into an unusual setting that is rarely explored in Malayalam cinema. The screenplay, while ambitious, sometimes struggles with pacing, particularly in the first half where the exposition feels prolonged. However, the second half picks up momentum with more engaging conflicts and resolutions.

The film's pacing is uneven, with the initial segments focusing heavily on world-building, which might test the patience of some viewers. The screenplay incorporates moments of humor and drama, but the transitions between these tones are occasionally jarring. The songs, though limited, are melodious and fit the narrative context, while the background score effectively enhances the fantasy atmosphere, adding depth to the island's mystique.

Technically, the cinematography by Shaji Kumar stands out, capturing the exotic locations and the unique scale differences between characters with creativity. The visual effects, given the film's era and budget, are commendable though not flawless. Overall, Athbhutha Dweepu is a commendable attempt at fantasy storytelling in regional cinema, with its strengths lying in concept and visual presentation, but it is somewhat let down by inconsistent pacing and screenplay execution.

Ajay Kumar: Delivers a convincing portrayal of the protagonist, balancing innocence and determination effectively.

Prithviraj Sukumaran: Offers a strong supporting role with natural charisma and emotional depth.

Mallika Kapoor: Provides a graceful presence with limited scope but performs her role adequately.

Jagathy Sreekumar: Injects humor and lightness, contributing to the film's entertainment value.