Step Brothers follows two forty-year-old men, Brennan Huff and Dale Doback. Both men, strangely, still live at home like children; they are unemployed, cared for by their respective parents, and playing with toys and video games the way a teenager would. Brennan's mother meets Dale's father, and sparks fly, leading them to get married, and making Brennan and Dale brothers by marriage. Neither is excited to move in with the other and have another man on their turf. They strut and posture and generally act like fools trying to assert their authority. Eventually, it escalates to full-blown warfare, and their parents lay down the law: find real jobs within a month, or you'll be kicked out of the house. Brennan's younger brother, the hugely successful and hugely mean Derek, makes fun of them, and when Dale is worked up to punch Derek in the face, Brennan is blown away by Dale's bravery (and Derek's wife, who hates her life, is sexually aroused that someone stood up to her horribly hubby). Brennan and Dale begin bonding, which causes their obnoxious behavior against one another to turn into obnoxious gleeful behavior. Dale's father, meanwhile, gets more and more fed up with every annoying thing Brennan and Dale can conjure. Their parents announce to them that jobs are a must, because they will need their own place to live... as they are selling the house, buying a boat, retiring, and sailing around the world. Brennan and Dale, both furious, decide to sabotage their parents from selling the house, and as an accidental side effect, they destroy Dale's father's boat. This causes Dale's father to snap, driving a wedge between him and his wife, causing them to eventually divorce. Brennan and Dale decide to grow up and get real jobs, but when they have a chance to reunite their parents, they must find a way to seal the deal and re-kindle their family once and for all.
Best part of story, including ending:
This movie is flat-out hilarious from beginning to end, filled to the brim with immature humor and adults behaving like ridiculous children. Ferrell and Reilly are fantastic.
Best scene in story:
The finale, involving Brennan singing opera while Dale plays the drums, causes all of the characters to escape into fantasy worlds, and we see the hilarious insides of their heads.
Opinion about the main character:
Brennan and Dale are wildly unlikable in terms of their behavior, but there's an innocence to their gleeful obnoxiousness that's hard to fully despise.