The taxing 2008 role Sienna Miller couldn’t shake off: “It comes home with you”Sienna Miller’s most profound acting experience came during one of her least well-received films. It’s unfortunate when a project with so much dramatic potential simply doesn’t come together, but even the film’s harshest critics could agree that Miller was a standout as Caitlin. Giving an acclaimed performance in an otherwise forgotten film doesn’t always do a performer any favours, and Miller, in particular, has struggled to earn the credit that she deserves. It is both confusing and disappointing that Miller is the only star in The Edge of Love who hasn’t gone on to find great success in the aftermath. Murphy has, of course, been heralded as one of the greatest living actors, even before he won the Academy Award for his performance in Oppenheimer.