Meet the new kids. Same as the old kids. Having been a teen during the Golden Age of Teen Movies, I consider myself a connoisseur of teen movies. John Hughes would be proud of “Booksmart” (2019). Two nerdish girls who abstained from fun for the sake of high school achievement find out the day before graduation they could have had just as much gain without all the pain. BTW, there’s a big, unsupervised graduation party that night. Cue the hijinks. Director Olivia Wilde creates perfect cinematic stasis, bringing in sudden comic weirdness every time things get serious, and vice versa.