Orange and blue seem to be the school colors of the school where this was shot, as can be seen when Ben is making free throws. The sports and cheerleading uniforms, however, are yellow and green.
When the camera rotates around Ben at the free-throw line, he casts different shadows from each new camera angle.
When the picture for Virgil's candy bar drive is first shown, the words "Runners Up" do not appear. In the close-up, "Runners Up" appears.
When Daric first hands Ben a cheat sheet, Ben crumbles the piece of paper. However, after Ben completes the cheat sheet and returns it to Daric, we see that the paper is not wrinkled, but neatly folded.
Early in the film when Virgil is standing in the strip mall parking lot, a wide shot shows two blank store signs in the background. In the close-up, he has shifted down the parking lot slightly, and is now standing further to the right of the signs. This can be confirmed by looking at the addresses below each sign, which have changed.
While Ben and Stephanie are studying, they're discussing biology and Ben flips through a textbook looking up an answer - but the diagrams in the book show that it's really a math book and not bio.
While Ben and Stephanie are studying for biology, Stephanie recaps Mitosis and states the following phases in order: Metaphase, Anaphase, and then Prophase. It should actually be Metaphase, Anaphase, and then Telophase.
Ben says "between the five of us". The correct word is "among" as "between" is specifically for two, be it two individual people, two sides in a war or two slices of bread. A student as accomplished and educated as Ben would know to say "among".