Somewhere in the middle of Bright Lights, the new HBO documentary about Hollywood legends Carrie Fisher and Debbie Reynolds, Reynolds’s home alarm goes off as she’s being interviewed. The camera wobbles from side to side as the crew tries to figure out how to shut the screeching thing off, an irritated Fisher shuffles to their aid instead of heading home to sleep, and Reynolds sits calmly in bright pink pantsuit, waiting patiently for the chaos around her to end. When it doesn’t, she begins s...