Wearing a mousy brown wig and hunching her shoulders, Ms. Chastain improbably manages to simulate homeliness. And her face registers feelings sharply and legibly. But, curiously for an expert film actress, she is guilty here of oversignaling the thoughts within. She plays Catherine’s spinsterish awkwardness for broad comedy in the early scenes. And her delivery of dialogue sometimes has a flatness that I associate with cold readings of scripts. This is surely a conscious choice, but it has the effect of making Catherine seem even more, uh, mentally challenged than usual. And I never felt the urgency of filial and romantic love festering into vengeful hatred, which should inform any production of “The Heiress.”