It doesn’t take much looking to know that there are many, many rules of writing. Part of the trick is not only knowing the rules, but knowing when not to follow them. For my writing group’s blog, Stonehenge Writers, I have a post today discussing the times to break even the most perennial of rules: show don’t tell. (And featuring an example from The Princess Bride.) I hope you’ll take a look!
Tales of the Marvelous 
Great post! I agree there are definitely times when it’s far more appropriate to briefly tell that something happened rather than showing a long, potentially boring and likely unnecessary scene!!!
It’s a careful balancing act for the writer, and not always easy to determine. If the writer isn’t sure which is best, I suggest they write it both ways and see which is the most interesting, moves the story forward and provides the needed character/plot information.
Great suggestion on trying it both ways! A friend once suggested writing a scene, cutting it down to absolutely bare bones, writing it out in more detail again, then repeating…which I feel like is somewhat similar, as a way to determine just what details and information are essential, and which can be told more quickly.