Moviestorm on Mountain Lion (Damaged download error)

If you receive an error message when installing Moviestorm on a Mac with the Mountain Lion operating system, which says that the download is damaged, this may be caused by the Gatekeeper security option.

To allow Moviestorm to install, you would need to enable 'Allow applications downloaded from: Anywhere'.

Details about Gatekeeper can be found here: http://support.apple.com/kb/HT5290