"Save the universe from yourselves or you're fired."
Regular Show: The Movie - Easter Eggs & Hidden Details
Easter Eggs
References to "Back to the Future"
The film contains numerous homages to the classic time-travel movie "Back to the Future." The entire plot of going back in time to fix a mistake made in the past mirrors the premise of the 1985 film. The use of a time-traveling vehicle and the potential to erase oneself from existence are also direct nods.
Wes Anderson High School
The high school that Mordecai and Rigby attended is named "West Anderson High." This is a reference to the film director Wes Anderson. J.G. Quintel has mentioned in interviews that Anderson's film "Rushmore" is one of his favorites.
Techmo's Appearance
Techmo, a recurring character from the series who is a friend of Skips, makes a surprise appearance during the final battle to help Mordecai and Rigby. His inclusion is a fun callback for long-time fans of the show.
Father Time Cameo
Father Time, another character from the series, has a brief but important cameo. Rigby encounters him when he attempts to fly into the sun. This appearance serves as a nod to a previous episode where Mordecai accidentally "killed" him.