Jude Law forgot how to count on Thursday when asked by David Letterman how many kids he has. There to promote the awesome-looking 'Sherlock Holmes,' Law and the 'Late Show' host were going through the whatcha-doin-for-Christmas motions when he said "I usually try to take the children on a bit of an adventure." Letterman followed up with "how many kids?" and Law gave a flat-out "three."

While Law indeed has a trio of kiddies with ex-wife Sadie Frost, he forgot to mention the daughter he conceived with former girlfriend Samantha Burke. Expect extra presents under the tree, Sophia! Watch the clip after the jump!