the 1989 Batman movie stated that a similar formula was not unconscionable. To date, there has been no review of this type of claim by an appellate court, meaning that the superior courts cannot look to an appellate court's decision for guidance. Still, the case has caused nearly all studios and production companies to be more careful about how they handle scripts. Concerned that "similarities" between future script drafts and movies could cause lawsuits, nearly all studios and production companies now return unsolicited scripts to their authors unopened. Response from John Landis In the retrospective interviews included on the 2007 DVD release of Coming to America, John Landis and screenwriters Barry Blaustein and David Sheffield make no mention of Art Buchwald's lawsuit, and maintain that the film's story originated with Eddie Murphy, with Blaustein and Sheffield writing the screenplay from Murphy's 25-page treatment. In an interview filmed around the time of the film's theatrical release, and included on the DVD, Murphy himself claims that he came up with the idea for the movie while on tour. In Giulia D'Agnolo Vallan's 2008 book John Landis, Landis is quoted as saying that Art Buchwald's case against Paramount was "without merit," going on to state the following: Landis also provided the following response as to why Buchwald's lawsuit received more attention in the press than other similar lawsuits: See also Leibovitz v. Paramount Pictures Corp. Paramount Communications, Inc. v. QVC Network, Inc. United States v. Paramount Pictures, Inc. References Further reading On the web United States contract case law 1990 in United States case law California state case law Paramount Pictures Screenwriting Law articles needing an infobox Coming to America (film series)