Michael Cera, the 26-year-old actor best known for playing a nerd on "Arrested Development" and an unlikely father in "Juno," makes his Broadway debut in "This Is Our Youth," about three New York 20-somethings languishing on the cusp of adulthood.

Written by Kenneth Lonergan ("You Can Count on Me"), the play, set in 1982, tells the story of spineless Warren (Mr. Cera), bad-boy Dennis (Kieran Culkin) and strident Jessica (Tavi Gevinson), whose brassy exterior masks deep insecurity. This...