noun , verb
■ noun
one of two or more famous actors who appear together in a film / movie or play
■ verb ( -rr- )
1.
[ v ] co-star (with sb) to appear as one of the main actors with sb in a play or film / movie :
a new movie in which Johnny Depp co-stars with Winona Ryder
2.
[ vn ] ( of a film / movie or play ) to have two or more famous actors acting in it :
a new movie co-starring Johnny Depp and Winona Ryder