Missing Rob then? Kristen Stewart looks glum in London... while boyfriend Pattinson is still busy in Berlin with Twilight

They have spent the last week by each other's side as they promote the latest Twilight movie, Breaking Dawn Part 1.
But  Kristen Stewart and Robert Pattinson have now been forced to separate, with the actress getting back to work on her new movie in the U.K, and the actor travelling to Berlin for yet another premiere.
And today 21-year-old Kristen appeared to be suffering from separation anxiety.

Missing Rob? Kristen Stewart looked glum today as she left her boyfriend Robert Pattinson's London home, while he was in Berlin promoting Twilight

Casual girl: Despite glamming it up at the recent Twilight premieres in London and L.A this week, Kristen was back to her usual uniform

The star was spotted leaving Robert's London home looking somewhat glum.
Despite glamming it up at the recent Twilight premieres in London and L.A this week, Kristen was back to her usual uniform.
She made it a casual Friday wearing khaki trousers, a white rolled-up T-shirt, a black zip up hoodie and her signature Ray-Ban Wayfers.

Countries apart:  Kristen had a day out in London, while Robert attended the Twilight Saga: Breaking Dawn Part 1 premiere in Berlin

Kristen and Robert have been spending a lot of time together to promote their latest Twilight film: Breaking Dawn Part 1.
And while Kristen's press duties may be over, Rob is still hard at work on the promotion tour of the movie.
He and co-star, Taylor Lautner, were in Berlin, Germany today for the premiere of the movie.

The vampire and the wolf: Taylor wrapped his arm around his friend and co-star Robert at the Berlin premiere

Breaking Dawn Part 1 had its opening today at midnight, and has already grossed an estimated $30.3 million.
This film features the highly-anticipated sex scenes between Kristen and Rob's characters: Edward Cullen and Bella Swan.
Director Bill Condon talked about the undeniable on-set chemistry between the real life couple: 'It's crazy how close they are. It's wonderful and... I feel as though because they're more relaxed with that, it added something to the movie, too.

Big night? Robert was seen visiting Berlin nightclub Bar 1000 following the premiere

'Because obviously, this is the part where they are together, and that's something they didn't have to act.'
The last instalment of the film's franchise, Breaking Dawn Part 2, is scheduled to be released a year from now.
Kristen is currently filming Snow White And The Huntsman in the U.K.

A bit tired: Robert looked weary as he got into his awaiting car to leave the club