Halloween is on hold for Lost star Elizabeth Mitchell's four-year-old son - because mommy was working on a movie as the trick or treaters came calling.

The actress, who played kindly Mrs Claus in family film The Santa Clause 3: The Escape Clause, was too busy to organise a Halloween party last weekend, so she has decided to trick her son into thinking the spookiest night of the year hasn't happened yet.

She explains, "Every single time kids in costumes would come up (to the door) my husband would be like, 'Look over there'. We're gonna stage a Halloween. I talked to my neighbours (and) we're gonna give them all candy and they're just gonna give it all back to us.

"We're dressing as a Scooby (Doo) mystery."

Elizabeth Mitchell Photos

(This news article provided by World Entertainment News Network)