Star Trek: Nemesis2002

Longtime enemies of the Federation, the Romulans have expressed their desire to initiate negotiations that will hopefully lead to a long-awaited unity in the galaxy.
But upon their arrival on Romulus, the Enterprise crew is faced with a threat that could lead to the destruction of the planet Earth, and Picard comes face to face with a man who may prove to be his most dangerous adversary yet a surprisingly personal nemesis.