My お気に入り part from Back To The Future is in part 3 when Doc is telling Marty about the tomb stones and that the tomb stone may be for Marty instead of him and then Marty says "Great Scott" and then Doc says "I Know This Is Heavy" lol i 愛 that part!
the first movie and when he calls marty(he is sleeping) and when he arrives to twin pines mall and the first time ever the car drives out of the truck :P epic
I liked the part in the first movie where Marty first sees the DeLorean time machine and says to Doc: "You made a time machine out of a DeLorean?" That was pretty funny!