The girl with all the gifts is a post-apocalyptic dystopian novel that won the Edgar Award (when it was a short story). It shows a breakdown of society after a fungal infection wiped out most of humanity. It mainly focuses on a teacher named Helen (played by Gemma Arterton), a scientist named Caroline(played by Glenn Close) and two soldiers that embarked on a journey with a little girl named Melanie( played by Sennia Nanua) who is gifted.
You can currently check out the book which has been available since 2014. And the movie looks worth your while as you can tell by the trailer. Take care and i hope everyone is having a great summer. Stay safe wherever you're at.
Update: Here's the movie's poster.