Sources say the actress has been having the time of her life while filming her new movie in Berlin, Germany.

“Kristen is the happiest she’s been in a long time,” a source said.

“She feels a sense of freedom being in Berlin and is having a really fun time on the set and just exploring the city and the countryside.

“She is with a couple of her good friends from back home. They are like her extended family and have been supporting her nonstop.

“Her friends always remind her to not take life or herself too seriously. They do a good job of bringing out her silly, goofy side.

“Of course Kristen still misses Rob, but being far away from him has actually helped her — she’s really happy and enjoying herself for the first time in a very long time.”

Rob has also been enjoying himself while filming a steamy advertisement for Dior. Kristen has seen the racy photos, but she’s not letting them get her down.

“Kristen is not upset or jealous over Rob’s intimate Dior ad. She knows it’s all work,” the friend reveals. “But it’s not like she’s going to spend lots of time looking at the photos or footage. Her friends want to make sure her mind is on fun and not in Rob.”

Tags: kristen stewart, robert pattinson