Dennis Hopper, Nathan Lane, Kelsey Grammer, Stanley Tucci, George Lopez and newcomer Madeline Carroll are joining Kevin Costner in Swing Vote, the populist comedy that begins shooting in Albuquerque, N.M., on July 23, according to Variety. Joshua Michael Stern is directing a script he wrote with Jason Richman.

Costner, who's financing the film and producing with longtime Tig Prods. partner Jim Wilson, plays an apathetic working-class single dad who's thrust on the world stage when the presi-dential election comes down to his vote.

Hopper and Grammer will play the Democratic candidate and Republican incumbent, while Lane and Tucci will play their respective campaign managers.

Lopez will play the local TV station manager whose town is descended upon by the political machinery of both parties.