Tying the knot at any age makes for a major life change, and when you combine that with the roller coaster years of your 20s, it makes for quite a unique ride. Part of what makes those postschool years so challenging is that it's typically the first time you and your friends veer off toward different life paths - and when your path is marriage, you set the stage for a big, brand-new chapter. With the help of some memorable onscreen pairs, take a look at 16 things anyone who's gotten married in their 20s will understand.