Metcalf delivers a phenomenal performance by combining the tough loving, blunt facets of motherhood with the empathetic, heartwarming moments that remind the viewer of their own mother. From start to finish, Metcalf captivates your attention with her witty deliveries of dialogue and affectionate heart-to-hearts with Ronan. There are times when you empathize with Marion, like when Lady Bird tells her she wants to go to school in the East Coast because that's "where culture is," unlike her hometown of Sacramento. Then there's times when you want to side with Lady Bird and fight back, especially when Marion tells Lady Bird she "won't get into those schools anyway," and will probably end up in prison. Metcalf's performance is so riveting, it surprises me that this is her first Oscar nomination of her decades long career. Critics have said Lady Bird will make you want to call your mother after watching it, which is exactly what director Greta Gerwig did. It's her remarkable craftsmanship and authentic portrayal of a relationship we can all relate to that makes Metcalf worthy of winning best actress in a supporting role.