Don’t break stride for killjoy contemporary questions of race, gender, socioeconomics and unconscious editorial bias in the shaping of historical narrative and maybe it is. At the very least, here is testimony by over 300 industry professionals, some of whom made silent movies and are now dead, others of whom are Steven Spielberg and Jordan Peele. And the result is a fat, showbiz-nerd-satisfying tome with something for every showbiz-nerd taste: on-set stories, technical details, funny anecdotes about actors, the echoes of studio executives kvetching and various people complaining about critics. Hooray for Hollywood!.