The role of Jennifer in Back to the Future went through multiple recastings, with Claudia Wells originally cast but unable to continue due to a scheduling conflict. Melora Hardin was brought in to replace Claudia Wells as Jennifer, but was deemed "too tall" for Michael J. Fox, resulting in her replacement by Elizabeth Shue. The recasting of Jennifer is a result of various logistical setbacks and changes in the production process, ultimately leading to the triple recasting of the character.

The recasting of Jennifer in Back to the Future might have gone unnoticed by some viewers, but Marty McFly's girlfriend is a role with a complex history. In the original 1985 Back to the Future, Claudia Wells plays Jennifer Parker, Marty's supportive love interest and high school sweetheart. She has a limited role in the first movie, since most of the action takes place in 1955, but she has a much...