Abstract: The invention relates to a method for starting a device for the continuous casting of molten metal, particularly steel, on a cooled roll (1) rotating about its horizontal axis. An adjacent container (4) contains the metal to be cast and has a front wall (5) whose free upper edge (11) is lowered in order to permit the exit of the metal to be cast, and which is swept by the cooled surface of the roll (1). According to the invention, casting is started with a relatively large lead angle (A) and, when casting has started, the container is displaced by pivoting about a horizontal axis, which can be the axis of rotation of the roll, so as to reduce the lead angle in order to arrive at a nominal working position (4') in which the container is held stationary.