The latest Twilight sequel Eclipse was the top film at the North American box office this weekend, but fell short of predictions made by its distributor.

The third instalment in the vampire romance series has made about $162m (£106.8m) in the US and Canada since opening last Wednesday.

Robert Pattinson and Kristen Stewart star in Eclipse, the third instalment in the vampire romance series based on the books by Stephanie Meyer.

The film has its UK premiere last week, ahead of its official UK release on 9 July.

Opening at number two was the family film The Last Airbender, which exceeded expectations despite poor reviews.

Director M. Night Shyamalan's adaptation of a Nickelodeon cartoon series earned $40.65m (£26.8m) for the weekend period.

And after two weeks in the top spot, Pixar cartoon Toy Story 3 - one of the best-reviewed movies of the year - slipped to number three with $30.2m (£19.9m).

Source: Press Release