Reese Witherspoon and Paul Rudd smiled for the cameras at a How Do You Know photo call in Berlin this morning. The duo are overseas in the midst of a European promotional tour for their movie, which came out in the US last month. Buzz was a big fan of the film despite its lackluster performance at the box office. Reese didn't let the underwhelming box office numbers diminish her holiday season, though, as she announced her engagement to Jim Toth around the project's Dec. 17 release. She's back in press mode following a weekend spent doing reshoots for Water For Elephants alongside her costar Robert Pattinson. Paul, meanwhile, hasn't had a shortage of hot costars after working on Wanderlust with Jennifer Aniston, and next up for him is another Apatow project with Leslie Mann.