Hoping to find out more about the secret Internet censorship plans Mississippi State Attorney General Jim Hood was pushing, Google is now taking the MPAA to court. After several subpoenas remained largely unanswered, the search giant is now asking a Columbia federal court to ensure that the MPAA other parties hand over the requested information.

Helped by the MPAA, Mississippi State Attorney General Jim Hood launched a secret campaign to revive SOPA-like censorship efforts in the United States.

The MPAA and Hood want Internet services to bring website blocking and search engine filtering back to the table after the controversial law failed to pass.

In response to the looming threat Google filed a complaint against Hood last December, asking the court to prevent Hood from enforcing a subpoena that addresses Google’s failure to take down or block access to illegal content, including pirate sites.

This resulted in a victory for Google with District Court Judge Henry Wingate putting the subpoena on hold. At the same time Google requested additional details from the Attorney General and various other parties involved in the scheme, including the MPAA.

Thus far, however, these requests haven’t proven fruitful. In a motion to compel directed at the MPAA (pdf), Google explains that the movie industry group and other petitioned parties have yet to hand over the requested information.

“To date, the subpoenaed parties have produced nothing,” Google’s lawyers inform the court.

“They have inexplicably delayed producing the few documents they agreed to turn over, and have objected that many of their documents, including internal notes or summaries of meetings with AG Hood, are irrelevant or protected by some unsubstantiated privilege.”

In addition to the MPAA, Google has also filed similar motions against the MPAA’s law firm Jenner & Block, Digital Citizens Alliance, 21st Century Fox, NBC Universal and Viacom.

All parties thus far have refused to hand over the requested information, which includes communication with and prepared for the Attorney General, as well as emails referencing Google.

According to the MPAA this information is “irrelevant” or privileged, but Google disagrees.

“The relevance objections are meritless. As Judge Wingate has already held, there is substantial evidence that the Attorney General’s actions against Google were undertaken in bad faith and for a retaliatory purpose,” the motion reads.

According to Google’s legal team the documents will shine a light on how the MPAA and others encouraged and helped the Attorney General to push for Internet censorship.

“Google expects the documents will show that the Attorney General, the Subpoenaed Parties, and their lobbyists understood that his actions invaded the exclusive province of federal law,” the motion reads.

“More fundamentally, the documents are likely to show that the Attorney General’s investigation was intended not to uncover supposed violations of Mississippi law, but instead to coerce Google into silencing speech that Viacom, Fox, and NBC do not like…”

District Court Judge James Boasberg has referred the case to a magistrate judge (pdf), who will discuss the matter in an upcoming hearing. Considering the stakes at hand, the players involved will leave no resource untapped to defend their positions.