Denis Leary originally had a role in the film, but had to back out over scheduling conflicts.

Had to turn down an offer from his friend, actor-director Emilio Estevez, to play one of the key roles in the movie about the assassination of Robert Kennedy.

Turned down the chance to work with director Martin Scorsese because of his ongoing commitment to his TV series.

The actor-writer-comic reluctantly turned down the hit movie because of his weekly TV series "Rescue Me." He is reported to have been offered both the roles played by Simon Baker and Stanley Tucci.

Leary was offered a role in the film, but had to turn it down due to scheduling conflicts.