What's Up With the Ending?
The ending of The Graduate is kind of cryptic. Benjamin shows up, crashes Elaine's wedding, fights off the angry guests with a cross, and runs away with the bride. They're totally elated, laughing and excited, as they jump on city bus. But gradually, their facial expressions change, becoming more neutral. They've won the battle and got what they wanted—each other—but how will they fair in the war? They've probably alienated all their friends. There goes the Alfa Romeo, we'd bet.
On the one hand, they've seized the day: they've asserted their real feelings for each other, and Ben's triumphed over Elaine's lame, un-romantic relationship with Carl. On the other, they're going to need to chart a totally unknown course for themselves. It's a deeply ambiguous ending.