FILMTFThe Firefly1937
Movie
How Long Is “The Firefly”?
2h 20m runtime
Action/adventure film with a runtime of 140 minutes, released in 1937. Presented in English.
Availability can vary by country and over time.
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Movie Runtime for The Firefly
Exact length so you know if it fits tonight.
Spoiler-Free Synopsis
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In this adaptation of the operetta by Rudolf Friml, secret agent Nina Maria Azara (Jeannette MacDonald) is working undercover for the King of Spain as a singer known as the "Mosca del Fuego" or "Firefly." Her mission is to uncover Napoleon's plot to invade Spain before it is too late. This film features a variety of songs including "Donkey Serenade," "Love Is Like a Firefly," " and "When a Maid Comes Knocking At Your Heart.", A Spanish spy goes undercover as a singer in order to uncover Napoleon's plans to invade her homeland. A version of the Friml operetta.
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About This Guide
This page focuses on the exact runtime, cast, release details, and synopsis for The Firefly (1937). It is designed to answer the practical question of how long the movie is while still giving enough context to decide whether it matches what you want to watch.
Editorial Take
The Firefly (1937) is positioned on OnlySynopsis as a practical viewing decision page built around its 2h 20m runtime. The page leans into action/adventure, costumer expectations so readers can quickly tell whether the film matches the mood they are trying to fill. Language context is also surfaced so users can judge accessibility and fit before clicking deeper into a title.
How OnlySynopsis Builds This Page
OnlySynopsis combines stored title metadata such as runtime, release information, genres, and cast or crew data into a reader-first guide. The goal is not just to list fields, but to help visitors understand whether a title fits their available time and viewing mood.
FAQ
How long is The Firefly?
The Firefly runs for 2h 20m.
What language is it available in?
The primary language listed for this title is English.
What kind of film is this?
It is tagged under action/adventure, costumer, opera, Musical.
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action/adventure
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Same DirectorRobert Z. Leonard
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This title asks for a bit more time.
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