Continuity mistake: When Granny uses her solo ski as a snowboard the ski becomes much bigger on its own.
Continuity mistake: In the scene where Red is trying to escape from the dynamite-filled cable car, we see the burning fuse as she climbs out of the car. A moment later we see her climbing up the outside of the car, and the fuse has disappeared. Later, when Grandma causes the car to fall into the river in the nick of time, the fuse is just burning through the window space.
Continuity mistake: Japhet the goat steps on a chair but it disappears in the next shot.
Continuity mistake: Granny grabs the first-place trophy as she passes the finish line. However, in the next shot, the trophy is gone.
Continuity mistake: When Granny uses the parachute, the clothes change from sport to casual clothes.
Suggested correction: Granny was wearing the sports clothes over her casual clothes. When she brings out the parachute, the sports clothes are shown falling off, leaving the casual clothes.
Continuity mistake: When Flippers starts to point at Granny it's with his left hand. A shot taken from behind him he's pointing at her with his right hand.
Continuity mistake: When the wolf and sheep are talking, look at the right side of the wolf. You can see a dandelion. In the next shot it's gone.
Continuity mistake: When Granny is using the squirrel's head to bust out of the closet, the squirrel disappears when she escapes.
Audio problem: In the scene when Grandma is at the tournament (but not yet skiing), in the cuts when the band isn't visible, if you listen closely, the lead singer isn't singing. (01:05:05)
Continuity mistake: When Granny first skis up to the other skiers, she is holding the skis in each hand. Then, she pulls a big box of snickerdoodles out of nowhere.