Dirección: John Landis
Dos hombres de negocios sostienen distintas tesis sobre las condiciones de la naturaleza humana. Para uno es cuestión de genética, para el otro es cuestión de educación. Para corroborar sus teorías hacen una apuesta para lo cual cambian los destinos de dos personas socialmente antagónicas.
Dan Aykroyd
Louis Winthorpe III
Eddie Murphy
Billy Ray Valentine
Ralph Bellamy
Randolph Duke
Don Ameche
Mortimer Duke
Denholm Elliott
Coleman
Jamie Lee Curtis
Ophelia
Paul Gleason
Clarence Beeks
Frank Oz
Corrupt Cop
Jim Belushi
Harvey
Kristin Holby
Penelope Witherspoon
Alfred Drake
President of Exchange
Bo Diddley
Pawnbroker
Al Franken
Baggage Handler #1
Tom Davis
Baggage Handler #2
Maurice Woods
Duke & Duke Employee
Richard D. Fisher, Jr.
Duke & Duke Employee
Anthony DiSabatino
Duke & Duke Employee
Bonnie Behrend
Duke & Duke Employee
Sunnie Merrill
Duke & Duke Employee
James Newell
Duke & Duke Employee
Dan Aykroyd
Louis Winthorpe III
Eddie Murphy
Billy Ray Valentine
Ralph Bellamy
Randolph Duke
Don Ameche
Mortimer Duke
Denholm Elliott
Coleman
Jamie Lee Curtis
Ophelia
Paul Gleason
Clarence Beeks
Frank Oz
Corrupt Cop
Jim Belushi
Harvey
Kristin Holby
Penelope Witherspoon
Alfred Drake
President of Exchange
Bo Diddley
Pawnbroker
Al Franken
Baggage Handler #1
Tom Davis
Baggage Handler #2
Maurice Woods
Duke & Duke Employee
Richard D. Fisher, Jr.
Duke & Duke Employee
Anthony DiSabatino
Duke & Duke Employee
Bonnie Behrend
Duke & Duke Employee
Sunnie Merrill
Duke & Duke Employee
James Newell
Duke & Duke Employee
Dan Aykroyd
Louis Winthorpe III
Eddie Murphy
Billy Ray Valentine
Ralph Bellamy
Randolph Duke
Don Ameche
Mortimer Duke
Denholm Elliott
Coleman
Jamie Lee Curtis
Ophelia
Paul Gleason
Clarence Beeks
Frank Oz
Corrupt Cop
Jim Belushi
Harvey
Kristin Holby
Penelope Witherspoon
Alfred Drake
President of Exchange
Bo Diddley
Pawnbroker
Al Franken
Baggage Handler #1
Tom Davis
Baggage Handler #2
Maurice Woods
Duke & Duke Employee
Richard D. Fisher, Jr.
Duke & Duke Employee
Anthony DiSabatino
Duke & Duke Employee
Bonnie Behrend
Duke & Duke Employee
Sunnie Merrill
Duke & Duke Employee
James Newell
Duke & Duke Employee