evidence: If Christopher Nolan’s Oppenheimer marks the high point in the career of Cillian Murphy, and is the film for which he’s always remembered, so be it, the actor said, in an appearance backstage at tonight’s Oscars. [...] Leading in nominations tonight at a tally of 13, Oppenheimer won seven, the other categories in which it was recognized being Best Picture, Directing, Original Score, Cinematography, Editing, and Supporting Actor. Considered neck in neck with Paul Giamatti (The Holdovers) as a favorite to win tonight, the actor also bested talent including Bradley Cooper (Maestro), Colman Domingo (Rustin), and Jeffrey Wright (American Fiction). Grossing nearly $1 billion globally when it hit theaters last summer opposite Warner Bros’ Barbie, Oppenheimer finds America locked in a devastating war, watching as Murphy’s physicist becomes the central figure in a pulse-pounding race against the Nazis to develop the first atomic bomb. Also recognized for onscreen work in the historical epic was Robert Downey Jr., who didn’t wind up making it backstage.