Action film idea

As a group we have decided to do a second title sequence. The genre we have chosen is action. We have also decided that we are going to do a chase scene. Obviously action films have a different set of conventions than comedies so I will do some research into those. We have an idea that their will be one protagonist running from one antagonist. The protagonist will be holding a box and this will create mystery. The antagonist will be some sort of professional but in the end the protagonist will give him the slip and get away.