A musical biopic of the Four Seasons—the rise, the tough times and personal clashes, and the ultimate triumph of a group of friends whose music became symbolic of a generation. Far from a mere tribute concert, it gets to the heart of the relationships at the centre of the group, with a special focus on frontman Frankie Valli, the small kid with the big falsetto.
| Directing | Clint Eastwood | Director |
| Writing | Marshall Brickman | Musical |
| Writing | Rick Elice | Screenplay |
| Writing | Rick Elice | Musical |
| Editing | Gary D. Roach | Editor |
| Costume & Make-Up | Carol A. O'Connell | Hair Department Head |
| Directing | Kerry Lyn McKissick | Script Supervisor |
| Production | Bob Gaudio | Executive Producer |
| Art | James J. Murakami | Production Design |
| Sound | Ron Melrose | Music Supervisor |
| Production | Clint Eastwood | Producer |
| Production | Brett Ratner | Executive Producer |
| Production | Geoffrey Miclat | Casting |
| Production | Robert Lorenz | Producer |
| Production | Tim Headington | Executive Producer |
| Production | James Packer | Executive Producer |
| Costume & Make-Up | Deborah Hopper | Costume Design |
| Production | Tim Moore | Executive Producer |
| Sound | Alan Robert Murray | Supervising Sound Editor |
| Sound | Walt Martin | Sound Mixer |
| Production | Graham King | Producer |
| Costume & Make-Up | Michelle Vittone | Makeup Department Head |
| Production | Frankie Valli | Executive Producer |
| Writing | Marshall Brickman | Screenplay |
| Editing | Joel Cox | Editor |
| Sound | Bub Asman | Supervising Sound Editor |
| Camera | Tom Stern | Director of Photography |
| Sound | Kevin Murray | Assistant Sound Editor |
| Crew | John C. Meier | Stunt Coordinator |
| Production | Michelle Chan Wong | Production Secretary |
| Crew | Dustin Meier | Stunts |
| Crew | Craig Baxley Jr | Stunts |
| Crew | Danny Downey | Stunt Double |
| Art | Ronald R. Reiss | Set Decoration |
| Art | Patrick M. Sullivan | Art Direction |
| Directing | Paula Case | Second Assistant Director |
| Directing | David M. Bernstein | First Assistant Director |
