A lot of details would need to be left out. For example, you wouldn't want to watch your character running around opening lots of containers... nor would you want to watch your character spend 5 minutes selling and buying equipment... or playing pazzak... I am just talking about the major plot elements. Conversations... a few fights, a few major events.
As an example, for KOTR, you might see the opening video of the Endar Spire getting attacked, then see your character wake up, the trainer guy run in and say "Come on".. then skip to the bit where you and trainer are entering a room and the trainer runs off to battle darth Bandon. As your character tries to open the other door, you see the introduction with carth.. then you watch one battle between your character and the guards outside Carths room... you see your character open the door and carth says "You made it!" and then you see the video sequence of the pod ejecting.
There is an example of the first 3 to 5 minutes of the personalized Kotr movie. Do you watch your character fight every fight, or open every container or run down every hallway... no. But you see the highlights of your 60 hour game which should condense down to about an hour and half to 2 hours. Then you could re-experience the storyline without the extra 58 hours of running down hallways, opening containers and doing inventory management.