An apparatus for adjusting a screen arrangement for a vehicle roof may have a main slider and an adjusting slider which can each be coupled to the screen arrangement and are configured for pivoting the screen arrangement out and in and for adjusting a prescribed alignment angle (A) of the screen arrangement. The apparatus may also have a drive coupling element which couples a drive cable of the main slider and a drive cable of the adjusting slider to one another, such that the main slider and the adjusting slider can be displaced, with respect to a common reference point, at least in certain portions, at different movement speeds, and such that with respect to a longitudinal axis (L) of the apparatus a spacing between the main slider and the adjusting slider and therefore an alignment angle (A) of the screen arrangement can be adjusted in a prescribed manner.