Carey is one of my favourite actresses, she was good but her part was minimal. Much better in Shame or An Education. Yeah, I wouldn't rate that film 5/5 either. Maybe 3.5
I'll agree with you on that, but she did great work with the slightly underwritten part that she had in Drive. And yep, I'd almost say her best work was in Shame. And I'll rewatch Never Let Me Go soon after I finish my doco binge and I'll see what I think then.