Apple has released iMovie 10.0.2 with fixes for unspecified issues that were causing the video editor to crash. The update also fixes two sharing issues: one that would cause sharing to fail outright and another where the Share button would not respond. Other changes include fixes for instances of blank project thumbnails and high-resolution images that appeared green, plus resolution of a problem where the Crop, Ken Burns, and Map features were not accessible on Macs using certain languages. iMovie 10.0.2 now requires OS X 10.9.1 Mavericks. ($14.99 new from the Mac App Store, free update, 1.94 GB)
Compare More Easily in Apple Mail
In Apple Mail, if you need to work back and forth between two different views of Mail's mailbox contents, you can do so quite easily. For example, you might want to look at a mailbox holding all filtered-in sales orders from the past week while also looking at a smart mailbox showing unanswered customer questions.
To avoid constantly clicking between mailbox views and losing your context each time, choose File > New Viewer window to get a second window and then arrange each window as desired.