Taylor Lautner, Kristen Stewart and Robert Pattinson attended the event
Twilight fans have been treated to detailed extracts of New Moon, the next instalment of the vampire film series, in the US.
Thousands of screaming girls attended the Comic-Con event in San Diego to see stars Robert Pattinson and Kristen Stewart introduce clips from the movie.
Twilight was a box office smash when it was released last year, taking more than $380m (£230m) worldwide.
New Moon is set to be released in cinemas on 20 November in the UK.
Stewart called the sequel "a severely emotional movie", with co-star Taylor Lautner promising "double the action than there was before".
Some fans camped out overnight to ensure they got a place in the queue to see the clips of the film.
One scene, which featured Pattinson's character removing his t-shirt, prompted screams from the audience.
Johnny Depp appeared to help preview Alice in Wonderland
The films are based on the series of best-selling novels by Stephenie Meyer.
Elsewhere at Comic-Con, actor Johnny Depp briefly joined director Tim Burton on stage to unveil a teaser trailer of their new film, Alice in Wonderland.
The film, which stars Depp as the Mad Hatter and is due out in March, draws from a cross section of Lewis Carroll's writing, including his Jabberwocky poem.
Jeff Bridges was also in attendance to help present early footage from Tron: Legacy, the sequel to the 1982 Disney film.
Comic-Con is an annual event, which started in 1970 and originally showcased comic books but has since widened to include film, television and interactive exhibits.