Michael J Fox Reveals Back to Future Co-Star Crispin Glover Created Set Friction

Michael J. Fox has revealed behind-the-scenes tensions during the filming of the 1985 movie Back to the Future, primarily due to co-star Crispin Glover's unpredictable acting style as George McFly. Fox described how Glover never performed the same way twice and often strayed from his marks, leading the crew to physically constrain him with a "miniature corral" made of sandbags and camera stands to keep him within the shot. Despite these challenges and the friction caused by Glover's unique methods, Fox expressed admiration and respect for his co-star's talent and dedication to his character. Glover did not return for the sequels released in 1989 and 1990, with Jeffrey Weissman replacing him. Fox also mentioned initial conflicts with Lea Thompson, the film's female lead, due to his replacement of Eric Stoltz in the lead role. These insights come from Fox's memoir, Future Boy, and various interviews reflecting on the film's production.