Hong Kong based singer-actress Karen Mok is starring in Cadillac's second micro movie, "Faithful to Freedom" ("Zhong Yu Zi You"), Xinhuanet.com reported on Monday, April 18.

Filming is currently on the way on the famed US Route 66, which is known as the shooting location of many road films. Its prequel, 90-second-long micro movie, "Explosive," featuring Daniel Wu, was released at the end of last year.

With comparatively complete plots, micro movies are shot within a short period of time and last only a few minutes or even shorter. They are suitable to be screened on new media platforms, such as mobile phones and mobile TV. Sometimes micro movies are also used for embedded advertisements.