It's an unforgettable Christmas for the townsfolk of Wellington-on-Sea when the worst snowstorm in history alters everyone's plans — including Santa's.

• Locksmith Animation
• DNEG
• Brian Cox
• Bill Nighy
• Fiona Shaw
• Jack Wisniewski
• Jodie Whittaker
• India Brown
• Guz Khan
• Lolly Adefope