Will Smith was being gracious as he accepted the European custom of kissing on both cheeks from Vitalli Sediuk, a Ukranian TV personality. After he realized it had gone too far, Will pulled away, then gave him a little slap on the cheek and asked 'What the hell you doing?'

That exploded into the story 'Will Smith Slaps Reporter'. As you can see, Will's reaction might not have been appropriate, but I'd hardly call it a slap. Where I'm from, we call that a cuff. Slaps, also, usually come with an audible SLAPping sound. Hence the name.

Here's what the reporter had to say about the incident.

Will explains his side to David Letterman.