I found this summary of Alpha and Omega 2 here link
(I underlined, bolded and italicized the mistake.)
"Kate & Humphrey and their three волк cubs (Smokey
, Claudette and Runt) are happily preparing to celebrate their first winter holidays together when their smallest cub, Runt, mysteriously disappears. They must now go on a new journey across the wilderness to find Runt before the winter festivities begin at home. It's their greatest adventure yet, filled with both action and suspense as well as plenty of humor and heartwarming moments. While their adventure does not go exactly as planned, in the end Kate & Humphrey discover that 'Home is where the Family Is'."
/sarcasm/ I guess they changed Stinky's name to Smokey after the movie was finished. /sarcasm/