Hi there, Kristin!
The explanation for the confusion s easy: both moms are correct! Chip 'n Dale's Campfire Sing-A-Long at
Disney's Fort Wilderness Resort begins at different times during different seasons of the year in order to make sure the sun has set for movie viewing.
In fall and winter, the entertainment begins around 7:00 PM, while in the spring and summer, things get started at around 8:00 PM.
In 2012, from January 1 - March 10, the campfire is lit at 6:30 PM, the sing-a-long begins at 7:00 PM, and the movie starts at 7:40 PM.
Beginning on March 11, coinciding with Daylight Saving Time, the campfire is lit at 7:30 PM, the sing-a-long starts at 8:00 PM, and the movie rolls at 8:40 PM.
Of course, to be sure, you will want to check with the Cast Member at your home Resort when you check in, since all times and movies are subject to change without notice.
Have a great time!
See you later, celebrator,
-Deborah B.