Katherine Heigl is in major denial about her lung-snack habit -- but she can always count on TMZ to help her get it under control!
Our cameras caught her leaving Le Petit Four yesterday with her mom, when she told cameras that quitting smoking was "not my resolution!" -- this coming just days after we busted her for lighting up outside Katsuya.
The proof is in the ... ashtray. We've seen video from December (which will air tonight on TMZ TV) and she clearly says, "I'm quitting smoking hopefully for the New Year ... I'm quitting!" Suck on that promise!