I predict you’ll never be more tempted in your life to say, “Okay, boomer,” and walk away than when you’re an hour into watching the Richard Linklater movie Apollo 10 ½: A Space Age Childhood, currently screening on Netflix.

This animated film, made with digital rotoscoping and more old-school 2D animation effects combined, lasts just ninety-eight minutes, but if you make it through the whole movie in one sitting, congratulations on your staying power. And don’t believe the marketing, which will tell you that this is a film about a fourth grader who gets drafted by NASA to test out a spaceship mistakenly built too small for an adult astronaut and who ultimately becomes the first person to land on the moon. That sounds okay, but it’s a mere framing device to lure you into this doting tribute to middle-class family life in the suburbs of Houston — where Linklater grew up — around the time of the Apollo 11 moon launch of 1969.

At age sixty-two, writer-director-producer Linklater isn’t old enough to be as droolingly nostalgic as this autobiographical film shows him to be, but I guess he’s just old at heart. This look back at a lightly fictionalized version of his own childhood is so slow, so sentimental, so in love with old-timey mores and attitudes and behaviors that it’s hard to bear. Linklater’s occasional acknowledgment that there were possibly unfortunate aspects of the world he knew then — for example, the section about how corporal punishment was a widely accepted practice that was regarded phlegmatically by the kids getting regular thrashings from everybody, from parents to teachers to neighbors — only makes it worse. His admiration for that world is so manifest that he might as well be an addled grandpa insisting, “I got beat all the time, and I turned out fine!”