"War Horse" is the Tony Awards' top play

(CBS) As expected, "The Book of Mormon" was the big musical winner at last night's Tony Awards, picking up nine trophies in all (including best musical). But when it came to the plays, it was "War Hose" that reigned.

The British drama won the Tony for best play, along with four other awards (best direction of a play, scenic design of a play, lighting design of a play and sound design of a play).

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"War Horse" is a about a boy, named Albert, and his beloved horse, Joey. When the horse is sold to the cavalry at the outbreak of World War I, Albert embarks on a mission to find and rescue him.

The play, an adaptation of a book of the same name by Michael Morpurgo, debuted in London's West End in 2009, and the Broadway production opened earlier this year.

A film adaptation of "War Horse," directed by Steven Spielberg, is scheduled for release on Dec. 28, 2011.