In Back to the Future ( 1985) Lorraine calls Marty McFly as Calving Klein because of the underwear. In that year CK wasn't famous outside the US, thus they changed it to

In Back To The Future, why do people keep calling Marty McFly

Why doesn't George McFly suspect Lorraine of continuing an affair

In Back To The Future, why do people keep calling Marty McFly 'Calvin'? - Quora

Marty Meets Lorraine His Mom in Her Room - Calvin Klein purple

Rebecca De Mornay

Poor Product Placement — Calvin Klein - Back to the Future (1985

Calvin Klein, Futurepedia

Marty McFly Calvin Klein Scene: Hilarious Back to the Future

NewtCave: Recap: Back to the Future Part 3: Present Perfect

In Back To The Future, why do people keep calling Marty McFly

NewtCave: Recap: Back to the Future Part 3: Present Perfect

Scene 9: Calvin & Lorraine

Scene 9: Calvin & Lorraine

In Back To The Future, why do people keep calling Marty McFly

In Back To The Future, why do people keep calling Marty McFly