An Act of Friendship

All I Want for Christmas is You is a British American Christmas romantic dramedy film directed by Mark Waters and written and produced by Drew Gars. It stars Colin Firth, Sarah Silverman, Mackenzie Foy, Jason Sudeikis, Amy Acker, Keira Knightly and Elle Fanning.

Plot
After loosing his wife in a car accident, a English businessman has become shy and barely socializes with others. Until one day, he bumps into an American woman visiting her brother for the holidays, where the two start bonding over the holiday season and he start socializing with others.

Cast

 * Colin Firth as Charles Kensington, a real estate entrepreneur who lost his wife and has become shy ever since.
 * Sarah Silverman as Leslie Adams, an American accountant visiting her brother in England for the holidays.
 * Mackenzie Foy as Gabby Adams, Leslie's daughter.
 * Jason Sudeikis as Steve Adams, Leslie's brother.
 * Amy Acker as Daniella Adams, Steve's wife.
 * Jeffrey Tambor as Jeremiah Adams, Leslie and Steve's father.
 * Blythe Danner as Roxanna Adams, Leslie and Steve's mother.
 * Keira Knightley as Hailey Steward, Charles' secretary.
 * Elle Fanning as Melanie Foxworthy, Charles' niece from his wife's side.
 * Toni Collette as Jennifer Kensington, Charles's deceased wife.