PERFORMANCES

1. SAOIRSE RONAN

In Greta Gerwig’s bittersweet coming-of-age comedy Lady Bird, Ronan plays Christine, a Sacramento teenager who’s had it with everything: her complex, cranky mother; her low-on-the-totem-pole social status; her really-not-so-bad Catholic school. But as Ronan plays her, you feel for Christine every minute, even when she’s being totally impossible. Beneath all that free-radical exasperation, her face is radiant, open and alive.

2. TIMOTHÉE CHALAMET

When, exactly, does adolescence flip