Iron Man 2

Ivan Vanko is shown building his Arc Reactor in a scene that highlights his technical prowess and connection to Tony Stark's legacy. Vanko, motivated by a desire for revenge against the Stark family, uses blueprints inherited from his father, Anton Vanko, who had worked with Howard Stark on the original Arc Reactor. The scene depicts Vanko meticulously assembling the reactor, which he later utilizes to power his Whiplash suit, enabling him to confront Tony Stark during the Monaco Grand Prix. This moment sets the stage for the ensuing conflict between Stark and Vanko.