Kristen Stewart pulls out the stops to support Robert Pattinson in Cannes

Kristen Stewart was joined by Robert Pattinson's best friend, Tom Sturridge, at the premiere of Cosmopolis

Kristen Stewart proved what a doting girlfriend she is by attending the premiere of Robert Pattinson's latest movie with his best friend Tom Sturridge.

Looking stunning in a scarlet gown by Reem Acra the Twilight star worked the red carpet at the Cannes Film Festival premiere of Cosmopolis.

While, Pattinson and Stewart didn't walk the red carpet together, the actress was more than happy to cosy up to her boyfriend's BFF Tom Sturridge.

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The pair looked very comfortable in each other's company as they hugged and posed for the photographers in Cannes, showing that Kristen is clearly a hit with Pattinson's friends and family.

Robert Pattinson and Tom Sturridge have been friends for years and both he and his pregnant gilfriend, Sienna Miller, attended Pattinson's birthday party at Claridges in London earlier this month.

It looks like Robert Pattinson and Kristen Stewart are in it for the long-haul, people!

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