Indeed. Post here if there's an update, and include the patch notes. If you get ninja'd, please delete your post.
Source Filmmaker version 0.9.5.8 has been released. This update will be applied automatically when your Steam client is restarted. The major changes include:
added missing view model for sniper’s machete
loosened resolution restriction to allow rendering in 1080p at any game window size
added missing view model for sniper’s machete
loosened resolution restriction to allow rendering in 1080p at any game window size