[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/yesterday_was_a_lie_movie_poster.jpg]]

''Yesterday Was a Lie'' is a 2009 science-fictional FilmNoir homage by director/writer James Kerwin, starring Creator/KipleighBrown as Hoyle, and featuring former ''Series/{{Star Trek|Deep Space Nine}}'' actress Creator/ChaseMasterson as a mysterious and significant -- but nameless -- lounge singer who becomes Hoyle's ally.

Hoyle is a hard-drinking private detective(?) searching for a missing scientist and a missing Nazi notebook, and instead uncovering mysteries about the nature of reality and time. Quantum mechanics, Jungian philosophy and {{fanservice}} all feature heavily. Creator/PeterMayhew (aka Chewbacca from ''Franchise/StarWars'') appears as a silent character called "Dead Man".

The movie spawned a short-lived web series in 2011.
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!!The film contains examples of the following:

* BadassLongCoat: Brown (Hoyle) wears one as part of her HardboiledDetective gear.
%%* DeliberatelyMonochrome
%%* DieselPunk
%%* FilmNoir
%%* HardboiledDetective
* HighClassGloves: Singer's dress in the jazz club when she sings "Yesterday Was a Lie."
* LingerieScene: Hoyle's shirt is removed in order to dress a gunshot wound, leaving her wearing just a bra in the rain.
* MeaningfulName:
** Hoyle's cat is named "Schrödinger" after one of the founders of quantum mechanics, who described a famous thought experiment called "UsefulNotes/SchrodingersCat".
** Hoyle may be a veiled reference to astronomer Sir Fred Hoyle; in one scene, a character reads "October the First Is Too Late," Fred Hoyle's book which outlines his concept of non-linear time and a reality "clerk," also referenced in the film.
%%* MsFanservice: Hoyle and Singer would both qualify as fanservice.
* NavelDeepNeckline: Hoyle and Singer in the art museum have dresses whose necklines plunge down to their navels.
* NoNameGiven: Save for Hoyle and Dudas, none of the characters in the film are ever named. This is especially noticeable with Singer, who is a very important character.
%%* ScienceFiction
* ShowSomeLeg: Hoyle persuades a male physics student to spill secrets to her by sitting in front of him in a miniskirt and crossing her legs.
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