I was extremely disappointed that Kimberly J Brown was not playing Marnie in this movie. Sara Paxton does an OK job, but it's just not the same since the character of Marnie had been played by the same person in the 3 other movies. Also, I love love love Debbie Reynolds - she's the reason my family started watching this series. Unfortunately she is barely in this movie. I'm talking maybe 5 minutes out of the hour and a half that it runs.
The story line is good and follows the other movies (to a point), but (my opinion) it would've been so much better if Miss Brown had played Marnie instead of another actress and of course, if Debbie Reynolds had been given more screen time. :)