Two new posters for DreamWorks’ Shrek Forever After have just been revealed at Yahoo! Movies, and they offer small hints about the movie’s plot. The first features the title character behind bars and apparently jailed. The second has new villain Rumplestilskin standing in front of an army of witches, sporting a strange red hair style that makes him resemble a Troll doll. More character posters can probably be expected in the near future. Shrek Forever After opens in theaters on May 21st.