Fireworks in France as R-Patz and K-Stew go to war!

Twi-hards get ready…

Robert Pattinson and Kristen Stewart are set to battle it out – at Cannes.

The ex-lovers will be both gracing the red carpet at the Palme d’Or Cannes Festival next month as both of their movies go head-to-head for one of the top prizes.

This will be the first time the pair are to publicly reunite since their split last May.

The Twilight stars will both be in the French resort at the same time – a flashback to the first flushes of their love, when they indulged in some serious PDAs at the 2012 festival.

They even walked the red carpet at each other’s premieres – the biggest show of togetherness the couple had shown in their romance.

It all went downhill a few weeks later though as Kristen was revealed to have cheated on the actor with married director Rupert Sanders, so it’s sure to be a very different festival for them this time around.

Rob’s movie Maps To The Stars will go up against Kristen’s Clouds Of Sila Maria for an award.