Ironically, Going Up River is pro-Kerry. One could say that along with their open invitation to John Kerry to give a ball lanced and opposing view -- which his camp has repeatedly turned down -- George Butler has also refused to allow Sinclair to use any footage from his film for balance and an opposing view.
Butler has not seen Sinclair's documentary and because it hasn't been aired the lawsuit is frivolous. Sinclair could sue George Butler for filing a frivolous lawsuit that falsely accuses Sinclair of copyright infringement. Libel.