Subtitled movie lovers, here it comes, subtitleeditor 0.21.1 is out. For the one that don't know about subtitleeditor, as its name says, it is a tool to edit subtitles!.
A couple of articles at debuntu cover its feature. Since then, many features were added and synchronizing subtitles as never been that easier.
Translating subtitles is also a piece of cake as you can start from a standard subtitle, type your translation aside, and when done, "Apply Translation", and the translated subtitles will replace the original subtitles.