I've seen several movies lately where the majority of dialogue (apart from being cheesy) was only hidden exposition. It's okay to learn things that may be foreign, but when one of the characters takes time out of the action to describe, in detail, some part of what's going on or the significance of a magical book that is very secret that no one besides a few people knows about then it's going overboard... especially when they're talkinga bout past events that could be rounded up by showing a flash back if it's absolutely needed (not asking a random stranger to give in intimate details about the event... yes, I've seen this being done lately).
So, when thinking about dialogue, what does need to be considered?
- If it's necessary: is the character saying something important or can what they're saying be told through action?
- Is it being repetitive? Do you mention it in action or does another character say something similar? Don't need to bore the reader with the same information.
- Is it believable? Does the dialogue match who's saying it?
- Does it move the story forward? Yeah, in the real world we have mundane conversations about what we want for breakfast, or arguments about putting the trash out... but does the reader really need to hear these conversations if they're not related to the story?
Do you find it difficult in giving your characters words? What sorts of dialogue do you find irritating when you're reading or watching a movie?