Reviewer, A. A. (Year). Title of review [Review of the film Film, by A. A. Director, Dir.]. Website. http://xxxxx
Barsanti, C. (2011). The Muppets [Review of the film The Muppets, by J Bobin, Dir.]. Filmcritic. http://www.filmcritic.com/reviews/2011/the-muppets/
As in-text citation:
(Barsanti, 2011)
Source: Publication Manual, 10.7 (examples 67-68)
This kind of texts is not handled well in a tool like Mendeley and is therefore recommended to do manually.