Seriously underwhelming trailer. Its a tongue-in-cheek comedy?
About as much as Iron Man, Thor, Captain America and The Avengers were I guess? An action adventure film can have tongue-in-cheek comedic elements and a lighter tone without being a "tongue-in-cheek comedy" per se.
Seriously now, this is a story where the main protagonists include a cliche sexy green alien assassin girl, the poster boy for steroid abuse, a giant walking house plant and a sodding *space racoon*! Plus with a title as goofy as "Guardians of the Galaxy" did anyone here honestly expect them to come at this with a straight face?