1. A method of identifying motion vectors for interpolating a portion of a digital video signal, the method comprising: identifying a plurality of motion vectors indicative of differences between first and second frames of a digital video signal; projecting each of the motion vectors to a location within a third frame at a time associated with the third frame. determining a measure of overlap of each projected location with a portion of a third frame to be interpolated; selecting at least one motion vector based on the measure; and generating at least a portion of a third frame based on the selected at least one motion vector.