Last August, Marvel Studios announced that an unspecified superhero adventure will hit theaters May 16, 2014. Speculation has run rampant about which movie that may be ever since the announcement. An unconfirmed report reveals that Guardians of the Galaxy will be that mystery movie in question.

The news follows our report from earlier this week that revealed Disney, which owns Marvel and Marvel Studios, has registered numerous trademarks for several tie-in products related to the title.

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Another report claims that Marvel will officially announce Guardians of the Galaxy at their Comic-Con panel in Hall H, and that newcomer Nicole Perlman has written a script which was well-received by Marvel executives. The studio is currently on the hunt for a director.

The comic book was created in 1969, and follows a group of aliens who take refuge on Earth, to defend the planet against another alien race known as the Badoom. It is believed the Guardians will join forces with Marvel's The Avengers, and that this adventure will serve as a lead-in for The Avengers 2 in 2015. Thanos, who was revealed in the end-credit scene of Marvel's The Avengers, will be featured in Guardians of the Galaxy.

We also reported earlier this month that Black Panther may also be the mystery movie slotted for May 16, 2014. However, Guardians of the Galaxy appears to be further along in development, and seems to fit in better with Marvel's wide-ranging cinematic universe.