Shortening a video

[Jon34V]

I simply want to edit a video, cutting some time off the beginning and some off the end. This will make the video just short of two hours. Do I simply record a new video?
I plan to send this to students in the original video.
Also, will a video this long be accepted by face book?

[Lotesdelere]

Use a dedicated video editor tool such as AviDemux.
http://avidemux.sourceforge.net