Kristen Stewart red carpet Cosmopolis premiere cannes Spread Pictures

It may have been boyfriend Robert Pattinson's premiere, but all eyes were on Kristen Stewart as she worked the red carpet in a sexy crimson Reem Acra number, at the Cannes Film Festival, on Friday evening.

But the Twilight star walked the Cosmopolis red carpet with another man -- her On the Road co-star, Tom Sturridge.

As of now, Rob and Kristen are to appear onscreen for the last time when the final installment, The Twilight Saga: Breaking Dawn - Part 2, hits theaters this November. At least they still have each other!