I saw "Evening" at the Provincetown Film Festival two weeks ago, and loved it. It's essentially about a women (Vanessa Redgrave) on her death bed, with her daughters visiting, who recalls/hallucinates an event from her youth. Big themes of loss, regret, choices, what really matters.
Yes, I noticed it was from Focus Features too. The book was written by Susan Minot, and Michael Cunningham (who wrote The Hours, an homage to Woolf's Mrs. Dalloway) cowrote the screenplay with Minot.
The cast is terrific, I loved the acting. The story was less gripping than the emotions portrayed.
Looks like the reviews are all over the place. I would recommend it.