Lil Wayne's longstanding $50 million lawsuit against the makers of 'The Carter' documentary may end up costing him in the end. According to a ruling by a California appeals court, Wayne could be found liable for breaching his verbal contract with filmmakers by failing to promote the project.

The defendant in Wayne's case, Digerati Holdings, slapped the rapper with a countersuit pitting breach of contract on his shoulders. Wayne objected to the film's release, which he claims contained unapproved footage, and, according to Digerati Holdings, refused to make himself available for interviews.

The countersuit also alleges that the Grammy winner's lawyers secretly approached possible distributors like MTV Networks and Viacom. In response to their allegations, Wayne filed an anti-SLAPP (Strategic Lawsuit Against Public Participation) motion citing the counterclaim as a hindrance of free speech.

Wayne first expressed opposition against the film, which follows him during a nearly one-year run on the road, back in 2009. Despite receiving rave reviews at the Sundance Film Festival, Weezy was unhappy with the "distasteful" depictions in the documentary, produced by QD3 Entertainment. In one of many candid scenes, the father of four appears to be under the influence of "syrup," a mixture between codeine and promethazine.

If found liable, Wayne may be required to pay damages to Digerati Holdings, for pulling out of promotional obligations. The case is scheduled to go to back to trial court, where each side will argue their case.

Watch 'The Carter' Documentary Trailer