Little Fires Everywhere is bound to spark comparisons to Big Little Lies, whether it wants them or not. The Hulu miniseries, an adaptation of Celeste Ng's 2017 novel of the same name, falls into a growing category of shows about privileged moms having extravagant fights with each other, and one of those moms is played by Reese Witherspoon in a collection of preppy cardigans.