>>106352977Adding to the above, the movie actually pulls from a lot of different stuff, some of which you'll have already read.
If you're purely in it for the lore and shit, the most important supporting characters in the movie (and Carol's first appearances where she got her powers) are established in the first volume of Captain Marvel; the early issues aren't exactly good but they're informative and occasionally illustrated by Gene Colan. The first 16 or so are the most involved with Kree stuff.
The backdrop for the movie is the Kree/Skrull war which played out in Avengers #89-97, and pulls directly from what Roy Thomas had been doing on Captain Marvel.
You've probably already read it, but the specific take on the Skrulls in this movie is inspired by their plotline in Secret Invasion.
In terms of understanding the inspiration for
some power level fluctuation that they play with in the movie, Chris Claremont's extended work with Carol starting in Avengers Annual #10 and continuing into his X-Men stories would introduce to the Binary era of the character.
If you want to know where she was in the 00s (which led up to her "glo-up" in 2012)
>Avengers v2 by Kurt Busiek>Ms Marvel v2 by Brian Reed>Bendis's 50 fucking Avengers books but especially Mighty Avengers v1Though they won't have much to do with the lore of this movie, aside from the Kree stuff in Busiek's Avengers and the Skrull stuff in her solo and in Avengers
>>106353048Reed's Ms. Marvel was still selling well above cancellation numbers when it ended at #50