Lightworks is an open source non-linear video editing system which is probably the best available at the 'freemium' price range.

Before you begin installation, please make sure that your system has the following specs:

  • Intel i7 chipset or faster, fast AMD chipset
    3GB RAM or higher
  • Two high-resolution displays (1920 x1080) or above
  • PCI Express graphics card (NVIDIA or ATI) with 1GB or higher
  • Separate media and system drives (these can be internal or external as long as the interface is suitably fast
  • Compatible sound card
  • 200MB Disk space for Lightworks installation

To begin, open your terminal with:

Ctrl+Alt+T

Then run the following commands:

sudo apt-get install gdebi

$ wget ftp.us.debian.org/debian/pool/main/t/tiff3/libtiff4_3.9.6-11_amd64.deb

$ wget http://www.lwks.com/dmpub/lwks-12.0-amd64.deb

$ sudo gdebi libtiff4_3.9.6-11_amd64.deb

$ sudo gdebi lwks-12.0-amd64.deb

Once the installation is complete, you should be able to open and run the program.

Related: How To Install Kdenlive on Ubuntu