Even the snobbiest film buff is liable to break down into tears at the beginning of UP but it turns out that there's a lot more to Pixar movies for a cinephile to appreciate. This short video shows, shot for shot, how many sneaky references to classic films are packed into these kids movies. Some are easier to spot than others, you probably had no idea watching Toy Story for the first time that this scene was a reference to Total Recall but an adult who's seen Total Recall may have noticed it:
On the other hand, who could have guess how many references Finding Nemo would make to Kramer vs Kramer: