Czech festival also announces that its “surprise” screening will be Knight and Day.

Actor/director Scott Cooper will attend the gala opening of the 45th Karlovy Vary International Film Festival, which will screen his film Crazy Heart.

Also, Adrien Grenier will be a guest at Karlovy Vary and will present this international premiere of his feature documentary Teenage Paparazzo.

KVIFF also announced that its surprise screening this year, on July 3, will be Knight and Day starring Tom Cruise and Cameron Diaz.

Karlovy Vary runs July 2-10 in the Czech spa town.