According to The Hollywood Reporter, Warner Bros. has bought the rights to three high-profile Media Rights Capital-produced features for distribution in a mid-eight-figure deal: Richard Kelly’s horror film “The Box” starring Cameron Diaz, James Marsden and Frank Langella; Robert Rodriguez’s family fantasy “Shorts”; and Ricky Gervais and Matthew Robinson’s comedy “This Side of the Truth,” starring the director with Jennifer Garner in negotiations to co-star.

The deal also will infuse cash into each project’s budget. Warner Bros. is partnering with Ted Field’s Radar Pictures to co-finance “Box,” and its unnamed production outfit (formed with the Abu Dhabi Media Co. and Hunt Lowry) will co-finance “Shorts,” adding to MRC’s initial investment.

The studio will handle worldwide distribution on “Shorts” and domestic distribution on “Box” and “Truth.” The acquisitions have been in the works for several months. One factor in the deal’s slow gestation was that it came along as Warners president and COO Alan Horn was reorganizing the company’s motion picture group and promoting production head Jeff Robinov to president of the newly formed Warner Bros. Picture Group last month.

“The Box” centers around a box given by a stranger (Langella) to an unhappily married couple (Diaz and Marsden). He tells them that if they push a button on the box, they’ll receive a hefty amount of cash — and someone they don’t know will die. The film is now shooting in Massachusetts with Sean McKittrick producing.

Weinstein Co. is repping international sales on “Box.”