In the show, Cooper is straight and Blaine is gay however in real life, Matt Bomer (Cooper) is gay and Darren Criss (Blaine) is straight.
Despite the group participating in "senior ditch day", many of the Glee club members that join in are not seniors, like Artie, Tina, Sugar, Rory.
The group decides to go to Six Flags for Senior Ditch Day, but there is no Six Flags in Ohio. They would've chosen to go to either King's Island or Cedar Point, both only a couple of hours away from Lima, Ohio.
Blaine's brother Cooper has the same names as journalist Anderson Cooper, just reversed.
Dylan Sprayberry plays a young version of Matt Bomers character, because of their resemblance. Sprayberry also plays a young version of Clark Kent/ Superman in Man Of Steel (2013) because of his resemblance to Henry Cavill. Matt Bomer has been a fan favorite choice to play Superman in films and was even a director favorite to play Superman in several cancelled films.