"Stay alive" utility for Ubuntu?

[Jeffrey Needle]

On Mon, 04 Apr 2011 07:03:47 -0700, Pongo A. Pan wrote:

> On Mon, 2011-04-04 at 02:57 +0000, Jeffrey Needle wrote:
>> Using latest build of Ubuntu on my desktop.
>> 
>> Sometimes when I'm watching a movie that goes longer than 2 hours, I'm
>> wishing my screensaver wouldn't activate.  There's activity on the
>> screen, but none on the keyboard.  Is there some utility I can use to
>> prevent the screensaver from activating if there is movement on the
>> screen?
> 
> In GNOME add the power-manager-inhibit applet to your panel.

Another feature I didn't know about.  Thanks!