Plot hole: Susan theorises that the insects have evolved to resemble people because of predatory pressure. However, for this to be true people must have been killing them - apart from the handful of 'moles and junkies' (who were the prey, not the killers) this film shows the first contact between humans and the evolved 'Judas bug'.
Mimic (1997)
1 plot hole - chronological order
Directed by: Guillermo del Toro
Starring: Mira Sorvino, Jeremy Northam, Giancarlo Giannini, Alexander Goodwin
Continuity mistake: Peter walks into the bathroom holding a box of Chinese and a bottle of wine. He puts them down and hugs Sarah. She falls backwards into the bath and now he too is holding a glass of cloudy looking water. (00:08:25)
Susan Tyler: When I increased the Judas' metabolism, I must have sped up its breeding cycle. I mean, we're talking tens, hundreds of thousands of generations, who knows how many mutations.
Peter Mann: I don't get it, I just don't fucking get this. How could the Judas evolve into this?
Susan Tyler: Think generations, not years, okay. It took only 40,000 generations for apes to turn into humans.
Peter Mann: So?
Susan Tyler: We changed its DNA, Peter! I mean, we don't know what we did.
Trivia: Director Guillermo del Toro disowned the theatrical edition after repeated creative clashes with producer Bob Weinstein, who notoriously made numerous and often unreasonable demands of the production, including dictating which scenes del Toro could shoot and forcing del Toro to cut several key sequences in editing, which lead to to many of the intended themes of the film becoming lost. Years later, del Toro was granted permission to use what little deleted footage could be recovered to make a pseudo director's cut that re-instated several key scenes absent in previously released versions. Guillermo del Toro has since said that he is proud of and enjoys this second edition of the film, as it is closer to his intended vision, though it is still missing some sequences that he wasn't allowed to film.