Representational Momentum refers to the tendency of observers to ``remember'' the stopping point of a dynamic scene as being farther along in the direction of motion that it was in reality (Freyd & Finke, 1984). Studies reported in the first part of this review show that this perceptive bias reflects some physical properties of the movement. In the second part of this review, we reported studies that attest that Movement Extrapolation may be modulated by certain cognitive characteristics of the observer: attentional processes which are developed, observer's familiarity relative to the scenes, and his/her expertise in the knowledge domain. In conclusion, we stressed the links between perception and action, showing that observers have always to act or re-act to the dynamic scenes they are faced up.