Will Smith appears to slap Chris Rock following Oscars joke about Jada Pinkett Smith

Sunday night's presentation of best documentary feature was something the Oscars strives to be,

indelible and unforgettable. But it achieved that goal by being something....

the Oscars never wants to be — legitimately disturbing.

Before presenting the Oscar for the category,

comedian Chris Rock joked that Jada Pinkett Smith,

who has publicly acknowledged dealing with a condition that causes hair loss,

might be in the running for "G.I. Jane 2,"

a howlingly dated reference to the 1997 film starring Demi Moore,

about a woman who undergoes special operations military training.

Pinkett Smith's husband, Will Smith stormed onto the stage and appeared to slap Rock.