- Original Title: Die Fledermaus (German for "The Bat")
- Alternative English Title: The Bat
- Year: 1944
- Country: Germany
- Genre: Musical, Comedy
- Director: Géza von Bolváry
- Screenplay: Per Schwenzen and Géza von Bolváry, based on the operetta Die Fledermaus by Johann Strauss II, Carl Haffner, and Richard Genée.
- Cast: Marte Harell (as Rosalinde Eisenstein), Johannes Heesters (as Gabriel von Eisenstein), Willy Fritsch (as Dr. Falke), Magda Schneider (as Adele), Hans Brausewetter (as Alfred), Victor Janson (as Prince Orlofsky), and Will Dohm (as Frank).
Synopsis: The Impostor is the English-language title sometimes attributed to the 1944 German film Die Fledermaus, which is an adaptation of Johann Strauss II's renowned operetta of the same name. The plot centers on an elaborate prank orchestrated by Dr. Falke to exact revenge on his friend, Gabriel von Eisenstein, who once left him stranded in public wearing a bat costume.
The story unfolds as Eisenstein is about to begin a short jail sentence. Dr. Falke persuades him to attend a lavish masquerade ball hosted by the eccentric Prince Orlofsky first. At the ball, a series of comedic deceptions and mistaken identities takes place. Eisenstein's wife, Rosalinde, attends the ball disguised as a mysterious Hungarian countess, and Eisenstein unknowingly flirts with her. Their maid, Adele, also attends, impersonating an actress. The intricate plot features romantic entanglements, witty dialogue, and musical numbers, all revolving around the various characters' attempts to maintain their disguises or expose others. The themes of deception, social masquerade, and the elaborate "impostor" plot likely lead to the film's English title "The Impostor," although "The Bat" is a direct translation of the original German title and more commonly associated with the operetta.
Production Context: Produced by UFA during the final years of World War II, Die Fledermaus served as a piece of escapist entertainment for the German population amidst the escalating conflict. Despite the wartime setting, the film maintains the lighthearted, festive tone characteristic of operetta adaptations. It premiered on December 20, 1944, just months before the end of the war in Europe. Like many films produced during this period, it aimed to provide distraction and bolster morale.