Romanoff and Juliet
Yes it's the Romeo & Juliet story updated to during the cold war and moved to a mittel european country ruled by writer/director/star Peter Ustinov. The General arranges for the children of the US and Russian ambassadors to fall in love. The drama increases when the General has the casting vote at the UN.
Akim Tamiroff, Alix Talton, Booth Colman, Carl Don, Edward Atienza, John Alderson, John Gavin, John Phillips, Peter Jones, Peter Ustinov, Renato Chiantoni, Rik Van Nutter, Sandra Dee, Suzanne Cloutier, Tamara Shayne, Thomas Chalmers, Tonio Selwart