There is this group out there, Jews for Jesus, which tries to get converts. They claim to be a sect of Judaism but views Jesus as the Messiah (which kind of makes it sound like they are Christians..).
And lately, they have had a new ad campaign which has been using the likeness of a fairly well known comedian labeling him "A Jew for Jesus!?". As a representative for the group commented, it was just a good natured use of his image and, "Shame on him for getting so upset about this."
Speaking as a Jew who is not for Jesus (and has had to deal with their prosthelytizing schtik on too many occasions) , I fail to see what is good natured.
Anyways, I hope Jackie Mason gets to laugh good naturedly all the way to the bank when all is said and done with the law suit he filed today.