Filmmaker Guillermo del Toro's production company worked on a cinematic trailer for the unannounced--but rumored--Fallout 4, according to the online resume of someone who says they worked on it. As spotted by Videogamer, a Mirada Studios contract employee listed "Fallout 4 cinematic trailer" on their LinkedIn page as a project they worked on December 2014 through March 2015. No other details are available.

Fallout publisher Bethesda has not formally announced Fallout 4, and one LinkedIn page should not be taken as confirmation that Fallout 4 is indeed in the works.

However, it does appear that Bethesda is preparing to make major announcements at E3 next month. The publisher is--for the first time ever--holding its own press briefing in Los Angeles. The event takes place Sunday, June 14, before the official start of E3.

GameSpot has reached out to both Mirada and Bethesda, asking for additional details about this report. We'll update this post with anything we might hear back.

Del Toro, who directed Pan's Labyrinth and the Hellboy movies, founded Mirada in 2010. The company has some very high-profile clients, including Disney, Nike, Mazda, and Katy Perry, among others.

Although Fallout 4 has not been officially announced, the evidence for the game's existence is mounting. An extensive report from December 2013--containing casting documents--claimed the game was indeed in development and would be set in Boston. This backs up a summer 2012 report that claimed a team from Bethesda traveled to the city for a scouting trip.

Fallout 3 was developed by Bethesda Game Studios and took place in Washington DC and the surrounding area. Bethesda Game Studios, which also developed The Elder Scrolls V: Skyrim, moved onto a new project in April 2013. This game has not yet been announced.

Bethesda has also trademarked Starfield and Soulburst, as well as Void Engine, none of which have been officially announced to date.

Del Toro was lined up to work with Hideo Kojima on a new Silent Hill game, but the project fell apart.