The pictures and plaques that Todd sees hanging in Coach Flint's office are totally inconsistent. In the medium shot it shows him standing in front of a photo with two indistinct basket ball players standing, and there is a football plaque beside it. However, in the closeup, it shows Scott Howard as the wolf slam dunking a basket, and there is a baseball plaque beside it.
Uncle Howard has brown hair, but when he wolfs out he has gray hair.
When Styles tries to open the door to his dorm room it is supposedly locked, yet it opens slightly whenever he touches it.
The rubbish and popcorn all over the boxing ring, after Todd Howard knocks out his opponent.
When Todd has his very first fight against his Academy opponent, both of them are sweaty only a few seconds after the fight has started.
Throughout the entire boxing/training montage, all of the wolves are portrayed by body doubles and not Jason Bateman. Height, facial structure, and builds are noticeably different.
When Todd (Jason Bateman) is being driven to his dorm by his uncle, the box behind his uncle has "Bathroom" written on it.
The boxes that Uncle Howard carry in are supposedly heavy, but they're obviously empty by the way Stiles tosses them aside.
During the classroom frog fight, the frogs can be heard ribbiting despite being dead.
The only times that the referee seems to do the full 10 count are when Todd gets knocked down. Every other time he counts to about 2 and then calls the fight.
When Todd and Nikki are cramming for the final, a montage of Todd's writing reveals he is left-handed. Nikki begins writing left-handed as well; then it jumps to her writing with her right hand.
In the beginning, when Todd first gets in uncle Harold's van, the entire crew is viewable in the van as it pulls away. The camera lights are also visible.
When Todd and Uncle Harold are walking back to the van from the dorm - the reflection of the boom mic operator is clearly seen in the polished van as he moves along with the actors.
After Todd leaves the dorm room to change his subjects, the reflection of the flood lights on the ceiling are visible on Styles' glasses.
For a Colorado college there are a lot of palm trees shown.