Leonardo DiCaprio puffs on e-cigarette at 'Gatsby' event

Leonardo DiCaprio may be trying to kick his smoking habit, but he can't go for very long without an electronic cigarette.

During Sunday's 30-minute news conference for his upcoming flick "The Great Gatsby," the Hollywood heavyhitter was spotted puffing away on an e-cig.

Between answering questions from the media, the 38-year-old surreptitiously took some drags.

DiCaprio has been spotted smoking an e-cigarette in the past.

Also at the event, held at the Plaza Hotel, were Baz Luhrmann, who directed the film adaptation of F. Scott Fitzgerald classic, and DiCaprio's co-stars Tobey Maguire, Carey Mulligan and Isla Fisher.