The Irons role was reportedly offered to Ben Kingsley, who was unavailable.
Tim Robbins reportedly declined because of other obligations; his intended role is explicitly unknown.
Billy Crudup reportedly declined because of other obligations; his intended role is explicitly unknown.
Carla Gugino was meant to play Moore’s role but an overrun on another project forced a late replacement.
Grace Gummer played Quinto’s ex-girlfriend in a deleted scene; Chandor reportedly blamed poor direction rather than her acting, and the scene is available on DVD.
Johnny Depp reportedly turned down Jack over the script; Jared Leto was reportedly favored but would not audition, and the actress transcribed as Claire Daines was supposedly wanted for Rose.
Jeremy Sisto auditioned multiple times and is lamented as never finding the right part; Billy Crudup was considered but was committed to Without Limits.
DiCaprio excelled in testing, and Winslet reportedly lobbied hard, telling Cameron to pick DiCaprio even if not her.
Gwyneth Paltrow and Winona Ryder were reportedly in the mix; Paltrow might have been decent but is judged too regal, and Winslet remains the best choice.
The Cal role was reportedly offered to Matthew McConaughey, who turned it down.
McConaughey as Cal is judged unworkable; a report that he was also offered Jack is doubted.
Cameron reportedly wanted Enya for the music before settling on Celine Dion.
Robert De Niro was reportedly offered Captain Smith but declined due to a gastrointestinal infection; he would have been fun in the role.
