“I almost tore the jumper to pieces pulling it off between takes I probably lost about 15 pounds.
I had little love for it by the end.”
Firth wasn’t the only one sweating over the homely masterpiece.

Credit: Everett Collection
“At first, none of the designs worked.
They were lovely, but they just weren’t funny.
So eventually we decided it had to be a moose, not a reindeer.”
“I have at times been unfairly blamed for subsequent surges in Christmas sweater sales,” he says.
“For whatever reason, I tend to break a sweat at the sight of them.”
Also, “I never noticed it was a moose.”
To read more on holiday film favorites,order the December issueofEntertainment Weeklyor find it on newsstands now.