Widescreen issue

Hoping someone can help…

Have added the fscommand fullscreen command in my movie which works fine on my computer monitor. However, my laptop is widescreen and leaves two wide borders on screen.

Is there any way of exporting so that the movie stretches to fit the widescreen? Is there a code so that the movie will adapt to both normal screen and widescreen? Or should I just add extra width to my background to compensate on the widescreen?

thanks