Start watching the original.
Eject the DVD (or blu ray) the moment Marley stops being a puppy.
Take a note of the running time.
Insert this cheap embarrassing cash in sequel/prequel/side-quel.
Try to work out and explain to your children why Marley can now talk.
Try to watch it.
When done, take a moment to pat yourself on the back.
Then insert DVD into fire place.
Ignite fire.
Return to the original Marley and Me.
Insert and start from the moment of previous ejection.
Cry at the end.
Now you know the entire epic 3 hour plus story of Marley!
From promising beginnings, to the middle (this 'film'-aimed at poor innocent 5 year olds)
to the distressing ending that will scar young children for life!
Marley would be spinning in his grave.