At the end of the film Marty gets out of the DeLorean sees the bad guys and runs after, what ever happens to the DeLorean? [After he has "seen the bad guys", he discovers that Doc was wearing a bullet-proof vest, and that he had read Marty's letter from 1955. Both he and Doc then return to their homes, so presumably Doc picked up the DeLorean on his way or right after this, before going into the future.]

What exactly did Biff do to George McFly's car? It is strongly suggested, but I couldn't understand what caused the accident. [He mentions spilling beer on his shirt so it's inferred that he was somewhat less than entirely sober, and he also refers to the car having a blind spot. Based on this, my assumption has always been that he was tipping his head back to take a drink from a can of beer, which means his eyes left the road, and he struck another vehicle; most likely at an intersection where the other driver had the right of way.]

What is the make and model of the car that belongs to the McFly family, that Biff wrecks and had towed to the McFly house at the beginning of the film - not the 1941 Ford that 1955 Biff owned. [It looks like a mid '80's Dodge Omni or Plymouth Horizon.]

Is it just me or is "Power of Love" playing in the background after Marty's audition? [Marty is playing a heavy metal version of 'Power of Love' FOR his audition. Immediately after the audition, a short excerpt of a March plays, for Mayor Goldie's election. The original Huey Lewis version plays at the end of the next scene.]

Why does Lorraine suddenly call Marty by his regular name not Calvin Klein, did I miss something? [During the scene where Lorraine sees Marty's underwear and assumes Calvin Klein is his name, Marty tells her most people call him Marty. She still thinks his name is Calvin, but she tries to make him happy by using his preferred "nickname".]

I heard that at one point during the part where Marty's being sent back to the future, Doctor Brown is seen putting the letter from Marty in his pocket. Is this true? [In the scene where Doc tears it up, he stuffs the pieces into his jacket, because he is distracted by the tree limb that falls and "unplugs" the cable from the Clock Tower. He was likely going to throw the pieces away, but did not have time. We are then led to realize that when Doc got home after Marty left, he found the pieces in his pocket and became curious, thus taping it back together and following Marty's instructions in 1985. On a side note, since Marty comes back to that spot at the end of BTTF 2 to get Doc's help to go back to 1885, Doc had even more time to spend with Marty in 1955, and even more reason to become curious as to the contents of Marty's letter.]

There's an all black band playing at an all white school in the 50's - is that likely? [Why not? Even though segregation was in effect, we never see them do anything but play on the stage. They even take their break outside, away from all the white folks at the dance. They are never shown using any of the "white" facilities, or fraternizing with any of the students. In fact, when they are "on break" at their car, it is behind the building, where there are no other cars, or even any people, anywhere around at all.]

What is the make/model of the car that Biff wrecked, that is being towed into the McFly's driveway near the beginning of the film? [According to what Doc said in Part II, Biff's car is a 1946 Ford.]

I have seen a different ending to this film. Every now and then when it airs on TV the movie ends with Doc in 1955, standing at the site where Marty just went back to 1985, and then Marty comes running up to him and says "I'm back" (or something similar). I seem to remember that this is the standard ending to the second film. Why is it occasionally used to end the first one? [That's actually the beginning scene in Back to the Future 2. It would make no sense to end the first film with that sequence, as at that point Marty hasn't returned to 1955 after getting home the first time.]

What is the song called that Marty plays in the "Enchantment under the sea" dance? ["Johnny B. Goode" by Chuck Berry, hence the bit where the lead singer Marvin Berry phones up his cousin Chuck during the song.]

When Marty comes back to a "new" 1985, his family has money, his siblings are now successful, they treat Marty like he never left (except to go to the lake). But before he supposedly went to the lake, didn't Marty act normal? Didn't Marty grow up with this new and improved family and have different experiences that didn't happen when they were poor? If so, why does he have no memory of this? If Marty grows up with money, has a successful father, a sister that's popular, what happens to "this" Marty? The one that grew up differently now that he was born into a richer family? (This can't be the same Marty that goes back in in time that we see at the end of the movie, because if that Marty will do everything we saw in the movie, hes the same Marty before anything changed. Like when he said his dad never stood to to Biff in his life). [Yup, that's what happens in time travel movies. All sorts of paradoxes pop up. You could sit and ponder this for the rest of your life. Or you could just enjoy the goofiness of it all. If you get a chance, look up an old article called "Back to the Future with the Other Marty McFly." It theorizes that there are, in fact, two Marty McFlys whose lives intersect with the competing timelines. But if you're seriously trying to figure out the complexities of all this, take the advice given in Austin Powers II and just enjoy the movie.]

In the "first timeline", Marty's father is a loser. He has never hit Biff. Marty goes to the past, and when he's going to 1985, he says that to Doc. He returns to the "new" 1985, where his father is successful, and he has hit Biff. He sees himself going to 1955, and that Marty is about to do everything that Marty did in the movie. But here's a question: that Marty lives in the "second timeline", where his father has hit Biff. Why then, in the past, he would say that his father has never hit Biff in his whole life? [I see two possible explanations. One is simply that the improved George McFly never told Marty the story about how he clocked Biff, perhaps to keep Marty from getting into fights himself. The other explanation is that the 1955 Marty went back to had not yet changed before he came back to the improved 1985. As the slowly-changing photograph illustrates, changes in timelines can be very gradual. Therefore, the only version of 1955 we are able see is the 1955 that the Marty of the original 1985 went back to.]

I always wondered: Is there any footage of Eric Stoltz playing Marty McFly available somewhere? [The release of the DVD was delayed because of legal issues over the Eric Stoltz footage, which was eventually removed. Stoltz can, in fact, be glimpsed in the final film: in the scene where Marty jumps into the DeLorean to escape the Libyans, that's actually Stoltz.]

When Marty is playing "Johnny B. Goode", he is doing guitar moves from different performers. What performers is he imitating? [It seems to me that he is imitating the following: Chuck Berry (which makes sense), Jimi Hendrix, Eddie Van Halen and Pete Townsend (the kicking the amp bit.)]

Shouldn't Doc have been severely electrocuted because he touched the lighting bolt when he connected the wires? [He probably got a good shock, but there have been recorded instances of people being struck by lighting and lived with little or no injuries.]

Why did they cast Eric Stoltz when they knew they wanted Michael J. Fox? (I know Fox was doing Family Ties) [Due to his scheduling on Family Ties, Michael J. Fox was not originally available, so they went with their second choice of Eric Stoltz. The studio, however, permitted Fox to film the movie only if it didn't interfere with his obligations to them. So, he filmed Back to the Future at night and on days he wasn't needed at the Family Ties set.]

When Marty returns to 1985, we see that the "Twin Pines Mall" sign has changed to "Lone Pine Mall," but then Marty sees himself travel to the past. Wouldn't we see it alter the instant the DeLorean vanishes, not before he goes back (because technically, he hasn't changed the past yet)? [This is a time loop type of question that could be argued for a lifetime. Basically, he did already change the past in the "universe" the movie is set in, so seeing the sign is correct.]

When, where, and how did Doc and Marty meet? [It only took me a couple of seconds to find a fan site with a credible answer. Apparently, in an early draft, Marty mentions in passing that Doc hired him to clean out his garage for fifty bucks and total access to his record collection. This scene was presumably never shot, thus the backstory was lost to time. See www.kristensheley.com/bttf/bttfuniverse.html for more extensive info.]

At the beginning of the movie, the brother is a loser who works at Burger King. At the end, he wears a suit and work at an office. As a presumably successful business man, wouldn't he have moved out of his parents' house? [Who says he didn't? Perhaps he lives close enough to come over for breakfast each morning. There isn't enough information in the scene to show that he still lives there; he is simply sitting at the table.]

What's the Van Halen song Marty plays to his dad when he tells George he's Darth Vader? [Donut City. See the van halen website http://www.van-halen.com/newsite/wildlife.html.]