Love and Monsters (2020)

Seven years ago, humanity blew up an asteroid flying to Earth, but then faced the consequences - some terrestrial inhabitants moved into giant monsters. One year later, the Earth's population fell by 95%. Joel's parents have died and he has been living in an underground bunker with the same survivors ever since. He recently caught a radio signal from another colony where his teenage love Aimee lives, and now he has decided to reach her. And it won't be easy, because Joel doesn't have survival skills and, moreover, falls in amazement at the sight of the monsters.