Poll: Are you left disappointed with a film after seeing its trailer?

Trailers for films are frustrating cinemagoers because they are giving away too much of the movie's plot-line or are better than the actual film.

A new study, based on responses to a 2013 trailer for The Hobbit: The Desolation Of Smaug, found that more than 80 per cent of people were left disappointed with a film after seeing its trailer.

Researchers at the University of East Anglia (UEA) said audiences want trailers which excite, tease and leave them emotionally engaged, without revealing excessive narrative.

In some cases the promos create expectations that feature films are unable to deliver on and are often considered better than the full film, the researchers added.

And many viewers were frustrated at spoilers contained within the trailers.

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