Amanda Taylor
July 01, 2013 AT 09:38 PM EDT

For fans heading to Comic-Con hoping to catch some clips and sneak previews of the newest Hobbit film, The Desolation of Smaug: Try to contain your disappointment.

The film will not have anything to show J.R.R. Tolkien fans, because the film is still in production and cannot spare its cast or crew. Rather than spend hours on a fabulous sizzle reel, director Peter Jackson explained (on Facebook) that he wanted to focus on making a great film.

See Jackson’s explanation below:

Read more:

‘The Hobbit: The Desolation of Smaug’ trailer: Here be dragons, or at least one — VIDEO

First look: Evangeline Lilly’s elf warrior in ‘The Hobbit: The Desolation of Smaug’ — EXCLUSIVE

Orlando Bloom says goodbye to Legolas … by ‘Taking the Hobbits to Isengard’ — VIDEO

‘The Hobbit’ actors provide squee-tastic response to fan-made trailer reaction video

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