Stewart next appeared alongside Juliette Binoche and Chloë Grace Moretz in '' Clouds of Sils Maria '' . The film had its premiere at 2014 Cannes Film Festival . Her performance in the film earned her critical acclaim . Todd McCarthy of '' The Hollywood Reporter '' said that " Stewart 's habitual low-keyed style , which can border on the monotone , functions as effectively underplayed contrast . " Peter Debruge of '' Variety '' praised her , saying that " Stewart is the one who actually embodies what Binoche 's character most fears , countering the older actress ’ more studied technique with the same spontaneous , agitated energy that makes her the most compellingly watchable American actress of her generation . " Robbie Collin of the '' Daily Telegraph '' praised her , saying " ... it 's Stewart who really shines here . Valentine is probably her best role to date : she 's sharp and subtle , knowable and then suddenly distant , and a late , surprising twist is handled with a brilliant lightness of touch . " For the role Stewart won a César Award for Best Supporting Actress , becoming the first American actress to receive a nomination in thirty years . She is the second American winner after Adrien Brody , who won César Award for Best Actor in 2003
2014 Cannes Film Festival
2014 Cannes Film Festival
Kristen Stewart