Guardians of the Galaxy vol. 2 (2017): the Guardians destroy Ego by planting a bomb in his brain. Exactly how Ego killed Meredith Quill by planting a tumour in her brain.

I hated that explanation of Peter’s mom’s cancer. It took away how real and down to earth it felt at the beginning of the first movie, before getting captured and sent to space and becoming a space pirate.