Kristen Stewart and Robert Pattinson at the premiere of Cosmopolis at Cannes!

Kristen Stewart Wows The Crowds (And Robert Pattinson) At Cannes 2012!

After Robert Pattinson turned up at the premiere of On The Road at Cannes Film Fesitval last week, which stars his rumoured girlfriend Kirsten Stewart, in serious style – via speedboat, nonetheless! – we couldn’t help but wonder if Kristen would get her own back and show him up at the premiere of his new flick, Cosmopolis.

And boy did she! Kristen smouldered as she arrived at the screening in a red hot Reem Acra gown complete with sexy lace panels and a plunging neckline. After an entrance like that, we seriously doubt it was the Cannes heat that had R-Patz hot and bothered over the weekend…

The pair were cryptic as usual about their relationship, avoiding being papped or seen together on the red carpet. Though after seeing Kristen in a serious of sexy dresses over the past few days, we doubt Robert will be able to hide their relationship for much longer! ME

VIDEO: Scroll down to watch Kristen Stewart on the red carpet and to listen to her talk about new film On The Road