Woyzeck has been made into a film in 1979 by the German director Werner Herzog. It stars Klaus Kinski as Woyzeck.
The film follows essentially the same plot as the play. The play has won many awards including Best Supporting Actress for Eva Mattes at the 1979 Cannes Film Festival and the Silver Guild Film Award in 191 from the Guild of German Art House Cinemas.
The entire film can be viewed here.