Extremely Long Cutscenes, What's your take?

[elprincipe]

1. Make the cutscene fairly short, even if it's important.
2. Never, ever have a cutscene that could be more fun playing it. This is a rule often broken.
3. Always allow skipping of cutscenes. Yes, even the first time through.

If those rules are followed I don't mind so much. If there is more than 1 minute of cutscene for every 50 minutes of play time it's probably too much though.