![In In](https://b.thumbs.redditmedia.com/XyalVGuNN9jJsa5CPf3xgkyaKivExEe11xD1VS0NDfQ.jpg)
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
![Michael J. Fox & Lea Thompson Signed Michael J. Fox & Lea Thompson Signed](https://images.pristineauction.com/252/2527946/main_1667509374-Michael-J-Fox-Lea-Thompson-Signed-Back-to-the-Future-16x20-Photo-Inscribed-Calvin-Klein-It-s-Written-All-Over-Your-Underwear-Lorraine-AutographCOA-PristineAuction.com.jpg)
Michael J. Fox & Lea Thompson Signed "Back to the Future" 16x20 Photo Inscribed "Calvin Klein? It's Written All Over Your Underwear." & "Lorraine" (AutographCOA) | Pristine Auction
![micro stretch 2 pack hip brief - shop by silhouette- Calvin Klein - Marty McFly undies | Calvin klein, Calvin, Klein micro stretch 2 pack hip brief - shop by silhouette- Calvin Klein - Marty McFly undies | Calvin klein, Calvin, Klein](https://i.pinimg.com/736x/98/da/ff/98daff85e6fa54a25c75f5d88f73bbb3--marty-mcfly-calvin-klein.jpg)