Here is a great ad by Lucent Technologies (now Acatel-Lucent). Its fast paced, very authentically themed for a classic kung-fu film and ends with a comedic punch. The only real critique I have is that, they don't convey what they do. For the record Alcatel-Lucent is the trusted partner of service providers, enterprises and governments worldwide, providing solutions to deliver voice, data and video communication services to end-users..
The thing you cannot deny is, they do hammer home the priceless edge of having a solid partner with you when things get tough.
-Beyond Urban Branding