This powerpoint contains a recap of the first part of the movie: Back to the future, using the simple present perfect. It also shows the contrast of personality of George Mcfly. It enables to infer adjectives to describe his evolution. For example, have pupils watch the movie until the extract when Doc gets killed. Then put under analysis the different steps using the present perfect. For the next lesson, have them watch the movie until Marty meets Lorraine in the past and put under scrutiny the personality of George Mcfly, then introduce the vocabulary.