Unaccompanied Minors (also known as Grounded in the United Kingdom and the Republic of Ireland) is a 2006 Christmas comedy film directed by Paul Feig and starring Lewis Black, Wilmer Valderrama, Tyler James Williams, Dyllan Christopher, Brett Kelly, Gia Mantegna, and Quinn Shephard.

The film is inspired by a true story by Susan Burton first told on the public radio show This American Life, under the title In the Event of an Emergency, Put Your Sister in an Upright Position in 2001.

Spencer Davenport and his sister Katherine must fly from California to Pennsylvania on Christmas Eve to spend the holidays with their dad.

At their layover at the Midwestern Hoover International Airport, a massive blizzard grounds all planes and cancels all flights, and the siblings are sent to the anarchic UM (unaccompanied minor) room, where they meet Christmas-spirited genius Charlie Goldfinch, surly tomboy Donna Malone, arrogant rich girl Grace Conrad, and mysterious Beef Wellington.

After Donna and Grace get into a fight, Spencer insists they all put their differences aside and work together, and Beef leaves in search of a Christmas tree.

Spencer and Grace follow them to the unclaimed baggage warehouse, where they find many presents, including a set of walkie-talkies, and a doll for Katherine.

With Zach's help, the kids decorate the airport, and take items from the unclaimed baggage warehouse to use as presents for the rest of the stranded passengers.

On Christmas morning, Mr. Porter dresses up as Santa Claus, hands out presents to the passengers and has the minors' flights restored.

The website's critics consensus reads: "Unaccompanied Minors, while featuring credible performances by its mostly young cast, is simply a rehash of other, funnier movies.