Need a name of a film

It is about 2 friends and one will become zombie and after he tells to his friend that he is zombie he will ask of him to be turned in to zombie. Its a comedy movie i think from 2011 year. Thanks in advance for helping me.
Answer #1
Maybe this?
Actually a pretty funny movie as I recall.
http://www.imdb.com/title/tt1336006/
The Revenant
Comedy | Horror – 24 August 2012
In Los Angeles, a fallen soldier who has joined the ranks of the living dead reunites with his best friend in order to deal with the city’s drug dealers and killers – a perfect way to collect the blood that one of them so desperately needs.
if not, you may want to browse this list.
http://www.imdb.com/search/title?count=100&keywords=zombie&num_votes=3000,&title_type=feature&ref_=gnr_kw_zo
Answer #2
Shaun of the Dead is the only thing that comes to mind :/
Answer #3
Thanks mate. That’s the one.