New Film Opening Idea

We have been struggling to think of a new film idea since our spoof idea went wrong, but we have now found an idea we think is great and cant wait to film. We have decided on the idea of two girls who have stolen an exam paper from school. Our two minutes will consist of a conversation between two girls at a park as well as memories/flashbacks of the girls stealing the exam. Also there will be a voice over of a phone call between the two characters. We have decided to make one of the characters very innocent looking whilst the other looks like the typical rule breaker. We have done this to create controversy and a mystery as the innocent one will turn out to be the 'baddie' whilst the other has been peer pressured into this. I think this is a good idea as we are making use of the resources we have and is it not a cliche or a typical teenage film.