What makes a good opening to a film?

To make a good opening to a film, the opening scene must grab an audience's attention and keep them intrigued in order for them to carry on watching the film:

• There needs to be a hook, finding an interesting storyline that will keep a viewer watching the film.
  
• Interesting Characters, to keep the audiences interested in the film. Possibly a character that anyone can relate to or a character that is very like-able.
  
• A cliff-hanger at the end of the opening scene would be good, especially for a horror openning scene as it keeps the audiences on the edge of their seats wanting to watch more to find out what happens next.
  
• Good Macro and Micro features.
  
• Macro - introduction of the characters, genre and narrative parts.
  
• Micro- good technical features to create a more professional appeal to the film, the quality of micro features effects everything in film making.