Robert Pattinson and Kristen Stewart are expected to reunite on the red carpet tonight.
The pair are scheduled to make their first public appearance together since Kristen was caught cheating on the actor with married director Rupert Sanders.
Robert and Kristen reportedly split in the wake of the indiscretion and are believed to have since reconciled.
The pair, who play vampire lovers Bella Swan and Edward Cullen in The Twilight Saga: Breaking Dawn - Part 2, have been travelling the world separately to promote the final installment of the series - a clever move by studio bosses to keep their personal lives from tarnishing its release.
Thousands of fans last week began descending upon the Nokia Theatre L.A. Live, where they have camped out to see the cast brought together.
Taylor Lautner, Peter Facinelli, Elizabeth Reaser, Kellan Lutz, Nikki Reed and Ashley Greene are also among those set to attend.
Ashley recently spoke to America's Seventeen magazine about her fears over how her co-stars' on-off relationship will affect movie audiences.
"Hopefully, it won't taint it and people will still be able to enjoy the movie," she said. "I think a lot of people see us as our characters; I really want them to still be able to do that."
The Twilight Saga: Breaking Dawn - Part 2 is set for release later this month.
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