To be clear: We don't think E.T. is a bad movie, just that it's been referenced and iterated on so many times, you can probably safely skip the source without missing much more than a traumatizing alien.

Our Blockbuster reference: https://www.usatoday.com/story/money/2019/06/24/biggest-summer-blockbuster-each-year-since-1975/39608473/