One famous 'S' meets another as the imaginative publicists of next week's "Shrek Forever After" combine the signature green initial of Shrek with the Spartans' squared-off letter.  

Mike Myers, Cameron Diaz, Eddie Murphy and Antonio Banderas once again lend their voices to "Shrek Forever After," in which a dissatisfied Shrek makes a life-changing deal with the wily Rumplestiltskin (Walt Dohrn). New voices in the cast include Jon Hamm, Jane Lynch and Craig Robinson as outlaw ogres. "Shrek Forever After" will be the first of the films in the series presented in 3D and in IMAX.