When I edit video (from a cam) in Imovie 09 it get's very slow after 5 minutes of film... I just put audioclips, background-mp3 etc on the clips.. nothing special i think. What do I do wrong? 
My system: Macbook pro wih 4 GB internal memory. Is that not enough????
My system: Macbook pro wih 4 GB internal memory. Is that not enough????