No trip is complete for Ranbir Kapoor and Katrina Kaif if they are not accompanied by good friend Ayan Mukherjee. The trio were off to watch ‘Brother’s, which was produced by their other good friend Karan Johar. The film however did not fare so well at the box office. Katrina is in the midst of promoting her upcoming film ‘Phantom’, so she needs all the publicity she can get and what better way than to attract attention with Ranbir Kapoor.