Subtitles downloading, the right (click) way
SubiT is avaliable for both Windows and Linux
Or, Get the source.

Movie files menu integration

With SubiT, you can download subtitles to your favorite movies and serieses by just right clicking them and executing SubiT.

Querying from within the program

Additionally, you can launch SubiT directly, and enter the desired movie name or drag him to the window.