Smaug's name is first mentioned in Chapter One: "An Unexpected Party" in passing by Thorin:
"Old Smaug has lived there long enough now to find out anything there is to know about those caves."1
We learn about Smaug and the dwarves' story later on, as Thorin explains what 13 dwarves and one wizard are doing in Bilbo Baggin's house:
"There was a most specially greedy, strong and wicked worm called Smaug...."2
We finally see Smaug himself quite a few chapters later in Chapter Twelve: "Inside Information."
"There he lay, a vast red-golden dragon, fast asleep; a thrumming came from his jaws and nostrils, and wisps of smoke, but his fires were low in slumber. Beneath him, under all his limbs and his huge coiled tail, and about him on all sides stretching away across the unseen floors, lay countless piles of precious things, gold wrought and unwrought, gems and jewels, and silver stained red-stained in the ruddy light."3
Smaug only appeared in the Hobbit, where he was killed and he never appeared again (because he was dead). So smaug was not in the Lord of the Rings trilogy, but he was in the Hobbit.
The Hobbit is fairly linear. There are a few places where the time line backs up, particularly when the dwarves and Bilbo are exploring Smaug's den and Smaug is attacking Laketown.
Smaug has never smelled anything like Bilbo and he cannot place it.
It was his smell. Smaug had never encountered a hobbit before. He did not recognize the smell of him, but could tell that he had been with the dwarves.
In the Hobbit, Smaug seeks revenge on the lake men because they helped the intruders.
Gollum and Smaug are introduced in The Hobbit; Frodo is introduced in The Lord of the Rings.
Smaug only appeared in the Hobbit, where he was killed and he never appeared again (because he was dead). So smaug was not in the Lord of the Rings trilogy, but he was in the Hobbit.
Smaug doesn't recognize the scent of Hobbit, although he knows what dwarves and men smell like.
The main conflict in The Hobbit is trying to regain the Lonely Mountain from Smaug the Dragon.
Lake town
The Desolation of Smaug
Yes. The second installment will be called The Hobbit: The Desolation of Smaug.
The Hobbit; The Desolation of Smaug will be released December 2013
Yes, the Desolation of Smaug
smaug dies
Smaug the dragon was voiced by Benedict Cumberbatch.
The Hobbit is fairly linear. There are a few places where the time line backs up, particularly when the dwarves and Bilbo are exploring Smaug's den and Smaug is attacking Laketown.