Summit Entertainment is already preparing for the worst in the upcoming promotional tour of last Twilight film.

Being in the same room would be impossible for ex-couple Kristen Stewart and Robert Pattinson, a source from Summit said. However, Summit is making plans to send out Rob and Kristen solo unless the situation changes. The movie debuts in November, and promotion efforts will go into full swing in the next 30 days or so.

Reports said that Robsten dropped out on their supposed appearance in fan conventions for "Breaking Dawn Part 2."

"Kristen is definitely still in love with Rob and is going through the motions of a breakup. She really wants him back but Rob is not interested in talking to her right now and that is certainly making things difficult for the plans on doing any press together for when Breaking Dawn comes out," the source said.

"Chances of them being in the same room is highly unlikely. They are going to have the timing of interviews timed out to prevent awkward encounters," the source quickly added.

However, there might be a miracle if there is a change in the relationship status.

It seems that Robert is not yet ready to forgive her ex-girlfriend for cheating on him and the actor wants to move on despite the public apology that Kristen did after news of her cheating scandal broke out. Kristen had an illicit affair with her "Snow White and the Huntsman" director Rupert Sanders.

Rob is just clearing up the promotion gigs on his latest movie "Cosmopolis," and Kristen is scheduled to appear at the Toronto Film Festival to promote her new movie, "On the Road" before the final "Twilight" movie comes out.

Everyone is holding their breath to the upcoming press conferences of the movie and is curious on how the two will be able to handle all the drama.

"The Twilight Saga: Breaking Dawn Part 2" will arrive in theaters on November 16.