Two grown men, alike in age and social status, are forced to live together when their parents wed, leaving them a pair of star crossed Step Brothers!

When the term star-crossed? is used in regards to lovers it is a phrase describing a pair of lovers whose relationship is often thwarted by outside forces or doomed to fail. So I guess I don't get how to step-brothers are star-crossed? Without knowing the full story line it seems that the reason that two grown men are still living at home with their parents would make a better log line.