At the suggestion of a teacher (Nat Faxon), a once-adventurous and fun-loving couple (Jennifer Garner and Edgar Ramírez) who fear they have become overly strict parents offer their children (Jenna Ortega, Julian Lerner and Everly Carganilla) the experience of the title, a 24-hour period during which the kids make the rules and their elders have to agree to every request — within reasonable limits, of course. The experiment starts off well, but results become raucous and relationships strained. Director Miguel Arteta’s adaptation of Amy Krouse Rosenthal and Tom Lichtenheld’s 2009 book, scripted by Justin Malen, gently promotes a balanced sense of openness on the part of grown-ups and reminds viewers of the value of spending family time together, having fun but also celebrating each other and ritualizing important moments. Brief suggestive material, a single crass term. The Catholic News Service classification is A-II — adults and adolescents. The Motion Picture Association rating is PG — parental guidance suggested. Some material may not be suitable for children.