Movie openings

This film scared me (Jordan) more than any film ever has! I couldn't find the opening scene on youtube so i put the trailer up.

The trailer is effective because it doesn't givemuch away, and with a film like 'The Grudge' you can't give too much away in the trailer because it ruins the film because it is a thriller so it has twists and jumpy bits.

The opening scene of this film is a man in bed with a girl and he gets out of bed and jumps off his balcony and kills himself, with no dialogue, this is an effective opening because it grabs the audiences attention straight away; why did he do it? etc.