There’s a gag late in the animated movie Hoppers that Pixar fans should be aware of before they go in. It’s a blink-and-you’ll-miss-it moment, not really designed for theatrical viewing — it’s more of a tidbit meant for later screencapping and analysis when the movie hits streaming. Still, if you’re paying close attention at exactly the right second, you’ll catch the moment where the Disney-owned studio fully leans into the Pixar Theory (sometimes known as the Grand Unifying Theory of Pixar Movies): the popular fandom idea that all Pixar movies are linked in a single, interconnected timeline.

