Revealing mistake: When Matt Damon and Minnie Driver are sitting outdoors at Au Bon Pain in Harvard Square, Matt is telling her how he is able to "see" mathematical equations, just like Beethoven was able to "see" the notes on a piano. At one point during the conversation a girl wearing a red backpack (possibly a Harvard student) walks by in the background, stops and looks at the camera, smiles, and then continues on her way. (01:21:10)
Revealing mistake: When Will and Skylar are on their date and eating hamburgers, an extra in a blue jacket is seen walking by in the background multiple times. (00:45:20 - 00:45:50)
Chosen answer: Will is not wasting his potential. Sean knows that Will has overcome many of his emotional difficulties and with his exceptional abilities, there will be many other job opportunities, regardless of where he lives. Sean believes it is far more important for Will to pursue a lasting relationship with a woman for the first time in his life.
raywest ★
Will had multiple job offers - someone of his intelligence could pick up any job he wanted hence he wasn't disappointed.