DRAGON:
Director Robert Zemeckis and writer Bob Gale envisioned Back to the Future as a lighthearted, comedic sci-fi adventure. Stoltz, a dedicated method actor, played the role with a much more serious, dramatic intensity. Zemeckis ultimately concluded that Stoltz was "not bringing the screwball energy" the film required. (From Wikipedia)

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Fox said that some of the actors really didn't like that he ended up with the role, Lea Thompson in particular was really rude to him at first.

He was the first choice for Back to the Future but it didn't seem like it would work because he was filming Family Ties during that time. The directors and producers didn't like Eric in the role because they thought he was being overly serious so they decided to go back to Michael and ask him again. He ended up filming Back to the Future and Family Ties at the same time basically only sleeping in the car from one set to the other. He wrote a book about his experiences during this time and its sooo good!

LUCIEN: ještě někde mám uloženou leaknutou asi desetiminutovku a teda vůbec se jim nedivím, Stoltz se na tu roli absolutně nehodil, děsný poleno :)

LYNCH: Další díl pořadu Na dosah o tom, jak umělá inteligence mění filmy, seriály, ale i videa, která se na nás valí ze všech stran.