Madeline is married to Ernest, who was once arch-rival Helen's fiance. After recovering from a mental breakdown, Helen vows to kill Madeline and steal back Ernest. Unfortunately for everyone, the introduction of a magic potion causes things to be a great deal more complicated than a mere murder plot.
| Sound | Alan Silvestri | Original Music Composer |
| Editing | Arthur Schmidt | Editor |
| Production | Steve Starkey | Producer |
| Directing | Robert Zemeckis | Director |
| Production | Robert Zemeckis | Producer |
| Camera | Dean Cundey | Director of Photography |
| Writing | Martin Donovan | Writer |
| Production | Karen Rea | Casting |
| Art | William James Teegarden | Art Direction |
| Art | Jackie Carr | Set Decoration |
| Art | Rick Carter | Production Design |
| Costume & Make-Up | Pamela Wise | Costume Supervisor |
| Sound | Don Davis | Orchestrator |
| Visual Effects | Michael Lantieri | Special Effects Supervisor |
| Visual Effects | Ken Ralston | Visual Effects Supervisor |
| Costume & Make-Up | Joanna Johnston | Costume Design |
| Directing | Ken Ralston | Second Unit Director |
| Visual Effects | Wes Takahashi | Animation Supervisor |
| Visual Effects | Geoff Campbell | CG Artist |
| Directing | Max Kleven | Second Unit Director |
| Production | Joan Bradshaw | Co-Producer |
| Production | Joan Bradshaw | Unit Production Manager |
| Directing | Marty P. Ewing | First Assistant Director |
| Directing | Cherylanne Martin | Second Assistant Director |
| Directing | Dana J. Kuznetzkoff | Second Second Assistant Director |
| Art | Tim Donelan | Leadman |
| Art | Caroline Quinn | Art Department Coordinator |
| Production | Karlene Gallegly | Location Manager |
| Art | John Zemansky | Property Master |
| Art | Lee B. Drygas | Assistant Property Master |
| Directing | Anne Rapp | Script Supervisor |
| Sound | William B. Kaplan | Production Sound Mixer |
| Sound | Earl Sampson | Boom Operator |
| Production | Kevin Landry | Production Accountant |
| Editing | Carin-Anne Strohmaier | First Assistant Editor |
| Production | Jacqueline A. Shea | Production Coordinator |
| Art | Erin M. Cummins | Assistant Art Director |
| Art | Lauren Cory | Assistant Art Director |
| Art | Paul Sonski | Assistant Art Director |
| Art | Linda Berger | Assistant Art Director |
| Art | Max E. Brehme | Set Dresser |
| Art | Steven Jarrard | Set Dresser |
| Art | Scott W. Leslie | Set Dresser |
| Art | Bruce Fuselier | Set Dresser |
| Art | William Kemper Wright | Set Dresser |
| Art | Tom Cranham | Production Illustrator |
| Art | David Lowery | Production Illustrator |
| Art | Martin A. Kline | Production Illustrator |
| Art | Lauren E. Polizzi | Set Designer |
| Art | Elizabeth Lapp | Set Designer |
| Art | Masako Masuda | Set Designer |
| Art | John Berger | Set Designer |
| Production | Richard De Labio | Assistant Location Manager |
| Art | Daniel R. Bentley | Assistant Property Master |
| Editing | Stephen L. Meek | Assistant Editor |
| Camera | Raymond Stella | Camera Operator |
| Camera | Clyde E. Bryan | First Assistant Camera |
| Camera | Jolanda R. Wipfli | Second Assistant Camera |
| Camera | Jason Garcia | Camera Loader |
| Camera | Deana Newcomb | Still Photographer |
| Crew | D. G. Fisher | Cableman |
| Costume & Make-Up | Barcie Waite | Assistant Costume Designer |
| Costume & Make-Up | Linda Redmon | Costumer |
| Costume & Make-Up | Diana Wilson | Costumer |
| Costume & Make-Up | Gilbert S. Hernandez | Costumer |
| Costume & Make-Up | Deborah Hopper | Costumer |
| Costume & Make-Up | Paul St. John | Costumer |
| Costume & Make-Up | Patricia Bercsi | Costumer |
| Lighting | Mark Walthour | Chief Lighting Technician |
| Lighting | Steve Chandler | Assistant Chief Lighting Technician |
| Lighting | Anthony Wong | Lighting Technician |
| Lighting | Keith Roverud | Lighting Technician |
| Lighting | Mark Soucie | Lighting Technician |
| Lighting | Edward R. Thompson Jr. | Lighting Technician |
| Lighting | Gary Sneed | Lighting Technician |
| Lighting | Ben O. Graham | Lighting Technician |
| Lighting | John Zirbel | Lighting Technician |
| Lighting | O'Shana Walker | Lighting Technician |
| Camera | Ron Cardarelli | Key Grip |
| Camera | Sid Lucero | Best Boy Grip |
| Camera | Dave Wachtman | Dolly Grip |
| Camera | Marty Dobkousky | Grip |
| Camera | Steven Cardarelli | Grip |
| Camera | John O'Grady | Grip |
| Camera | Michael Ronald Heath | Grip |
| Art | Jerry Fitzpatrick | Construction Coordinator |
| Art | Richard Bruns | Construction Foreman |
| Costume & Make-Up | Lance Anderson | Prosthetics |
| Costume & Make-Up | Michael Mills | Makeup Artist |
| Costume & Make-Up | Dick Smith | Makeup Designer |
| Costume & Make-Up | Kevin Haney | Prosthetic Supervisor |
| Costume & Make-Up | J. Roy Helland | Makeup Artist |
| Costume & Make-Up | E. Thomas Case | Makeup Artist |
| Costume & Make-Up | Susan Germaine | Key Hair Stylist |
| Costume & Make-Up | J. Roy Helland | Hairstylist |
| Costume & Make-Up | Kathryn Blondell | Hairstylist |
| Costume & Make-Up | Shirley Crawford | Hairstylist |
| Art | Craig B. Ayers Sr. | Greensman |
| Art | Jeffrey Thomas | Greensman |
| Art | William Solomon | Standby Painter |
| Lighting | Patrick Marshall | Rigging Gaffer |
| Lighting | Bud Heller | Key Rigging Grip |
| Lighting | Raymond Michels | Rigging Grip |
| Production | Janine Cavoto | Assistant Production Coordinator |
| Crew | Patti Hawn | Unit Publicist |
| Crew | Tim Monich | Dialect Coach |
| Production | Donna Ekholdt | Casting Associate |
| Crew | Walter Scott | Stunt Coordinator |
| Crew | Tim Gonzales | Craft Service |
| Camera | Jack Cooperman | Underwater Director of Photography |
| Crew | Robert Neilson | Transportation Coordinator |
| Crew | Maylon Houston | Transportation Captain |
| Crew | Ron Kelley | Transportation Co-Captain |
| Sound | Charles L. Campbell | Supervising Sound Editor |
| Sound | Donald J. Malouf | Supervising Sound Editor |
| Sound | Larry Carow | Sound Editor |
| Sound | Jeff Clark | Sound Editor |
| Sound | Albert Gasser | Sound Editor |
| Sound | Nils C. Jensen | Sound Editor |
| Sound | Howard Neiman | Sound Editor |
| Sound | Angie Luckey | Assistant Sound Editor |
| Sound | Jerry Edemann | Assistant Sound Editor |
| Sound | Kevin Bartnof | Foley Artist |
| Sound | Hilda Hodges | Foley Artist |
| Sound | Carolyn Tapp | Foley Mixer |
| Sound | Marilyn Graf | Foley Recordist |
| Sound | Sandra García | Foley Recordist |
| Sound | Larry Singer | ADR Supervisor |
| Sound | Thomas Whiting | ADR Editor |
| Sound | Corinne Sessarego | ADR Editor |
| Sound | Doc Kane | ADR Mixer |
| Sound | Mike Boudry | Sound Recordist |
| Sound | Rick Alexander | Sound Re-Recording Mixer |
| Sound | James Bolt | Sound Re-Recording Mixer |
| Sound | Andy D'Addario | Sound Re-Recording Mixer |
| Sound | Kenneth Karman | Music Editor |
| Editing | Gary Burritt | Negative Cutter |
| Editing | David Orr | Color Timer |
| Camera | Don Burgess | Second Unit Director of Photography |
| Costume & Make-Up | Lance Anderson | Makeup Artist |
| Costume & Make-Up | Kevin Haney | Makeup Supervisor |
| Costume & Make-Up | Greg Nelson | Makeup Artist |
| Costume & Make-Up | Nadege Schoenfeld | Makeup Artist |
| Costume & Make-Up | John Dods | Makeup Effects Designer |
| Costume & Make-Up | Jake Garber | Makeup Effects Designer |
| Costume & Make-Up | Scott Oshita | Makeup Effects Designer |
| Crew | Denise Lynne Roberts | Stunt Double |
| Crew | Keii Johnston | Stunt Double |
| Crew | Barbara Anne Klein | Stunt Double |
| Crew | Debbie Lynn Ross | Stunts |
| Visual Effects | Doug Smythe | Visual Effects |
| Visual Effects | Tom Woodruff Jr. | Visual Effects |
| Crew | Catherine Bell | Stunt Double |
| Writing | David Koepp | Writer |
| Art | Steve Miller | Greensman |
