Jennifer Grey recently shared what was really going on behind the scenes of her 1984 action flick Red Dawn, where she first met her future Dirty Dancing co-star Patrick Swayze.

Jennifer Grey starred in "Red Dawn" with the late Patrick Swayze who died of pancreatic cancer at age 57 in 2009.

Jennifer Grey and Patrick Swayze's sex scene never made it in the 1984 "Red Dawn" because Swayze was drunk and Grey smoked "a lot of weed" before filming.

Jennifer Grey and Patrick Swayze Robert Scott/Fotos International/Getty Images Jennifer Grey took a trip down memory lane recalling filming a sex scene with Patrick Swayze in 1984’s Red Dawn.

Jennifer Grey took a trip down memory lane recalling filming a sex scene with Patrick Swayze in 1984’s Red Dawn. “As an actor, you're looking at all your stuff in the script, and you're like ...