Pixar and Disney have hyped director Angus MacLane’s Lightyear up by making it out as a mysterious reworking of Toy Story’s canon that reveals all-new details about Andy Davis’ favorite space explorer. Though a new version of Buzz anchors the film, its story about how reaching for the stars can lead to people losing hold of the important things right in front of them is actually more about taking its titular astronaut off a pedestal…