Shortly after winning U.S. antitrust approval, a Fox shareholder has filed a lawsuit to stop the acquisition of 21st Century Fox's studio assets to Disney.

Fox Movie and TV Show Properties Headed to Disney 18 IMAGES

According to THR , Robert Weiss, who is leading other Fox shareholders, filed his complaint on Friday in Delaware in regards to what was filed with the Securities and Exchange Commission about the deal.The lawsuit alleges that a proxy statement that was filed on June 28 omits or misrepresents the company's financial projections and any fundamental data valuation analyses from Goldman Sachs and Centerview Partners. The complaint also mentions concern over lack of disclosure relating to any potential conflicts of interest with Goldman Sachs.In terms of material exclusions, the shareholder lawsuit complains about the absence of financial projections for Hulu, and earnings estimates for the European broadcaster Sky.The looming deal has affected Fox's business in various ways. While some at the company have said it's "business as usual," reports suggest it's clear the company is waiting for the changes the deal may bring. Deadline reports Fox has implemented extra summer vacation days for staff, though no official explanation has been offered for the new policy.After a tight bidding war, Fox accepted Disney's offer last month of $71.3 billion at $38 per share for a stock option, opposed to Comcast's $65 billion cash-only offer. Obtaining the film rights to the Marvel franchises Fox currently has is a notable aspect of the deal for Disney, as it would include X-Men, Deadpool, Fantastic Four, and others returning to Marvel Studios proper.See all of the movie and TV show properties Disney will acquire from Fox if the buyout goes through in the gallery below.

Jessie Wade is a news writer for IGN. She loves writing about lawsuits for some reason. Follow her on Twitter @jessieannwade