Can a mother and daughter be happy participating in competitive sports together — and sometimes on opposite teams?

CHICAGO — The warning came too late for Barack Obama’s adviser: Don’t walk and text at the same time.

A parenting tip from “Practical Wisdom For Parents: Raising Self-Confident Children In The Preschool Years,” by Nancy Schulman and Ellen Birnbaum (Vintage Books): Playdates for preschool-age kids work best with parties of two.

“The Mummy: Tomb of the Dragon Emperor”: In the Far East, a trouble-seeking father-and-son duo unearth the mummy of the first Emperor of Qin — a shape-shifting entity who was cursed by a wizard centuries ago.