They hope to 'build a bridge' between the two cultures. [=they hope to help the people in the two cultures understand each other]
I don't know how we'll pay the bills if you quit your job, but 'we'll cross that bridge when we come to it'.
We had our differences in the past, but that's all 'water under the bridge' now.
(..) MESSINGER: You choose. SETH: Choose? To fall to Earth. You take the plunge, the tumble, the dive. You jump off a bridge. Leap out a window. You just make up your mind to do it and you do it. MESSINGER: You wake up all smelly, and aching from head to toe... (..)1998 City of Angels