Dirección: Norman Panama
Harry (Crosby) y Chester (Hope) son dos actores de vodevil que viajan al Tíbet en busca de una cura que devuelva la memoria a Chester. Cuando por fin dan con ella, su memoria mejora tanto que se aprende sin querer una fórmula secreta que hace posibles los viajes espaciales.
Bing Crosby
Harry Turner
Bob Hope
Chester Babcock
Joan Collins
Diane
Robert Morley
Leader of the 3rd Echelon
Walter Gotell
Dr. Zorbb
Felix Aylmer
Grand Lama
Alan Gifford
American Official
Michel Mok
Undetermined Role (as Michele Mok)
Katya Douglas
3rd Echelon Receptionist
Roger Delgado
Jinnah
Robert Ayres
American Official
Mei Ling
Ming Toy
Jacqueline Jones
Blonde at Airport
Yvonne Shima
Dorothy Lamour
Dorothy Lamour
Peter Sellers
Indian Neurologist (uncredited)
David Niven
Lama Remembering Lady Chatterly's Lover (uncredited)
Dean Martin
Grape on Plutomium (uncredited)
Frank Sinatra
Twig on Plutomium (uncredited)
Dave King
Mr. Ahso (uncredited)
Bing Crosby
Harry Turner
Bob Hope
Chester Babcock
Joan Collins
Diane
Robert Morley
Leader of the 3rd Echelon
Walter Gotell
Dr. Zorbb
Felix Aylmer
Grand Lama
Alan Gifford
American Official
Michel Mok
Undetermined Role (as Michele Mok)
Katya Douglas
3rd Echelon Receptionist
Roger Delgado
Jinnah
Robert Ayres
American Official
Mei Ling
Ming Toy
Jacqueline Jones
Blonde at Airport
Yvonne Shima
Dorothy Lamour
Dorothy Lamour
Peter Sellers
Indian Neurologist (uncredited)
David Niven
Lama Remembering Lady Chatterly's Lover (uncredited)
Dean Martin
Grape on Plutomium (uncredited)
Frank Sinatra
Twig on Plutomium (uncredited)
Dave King
Mr. Ahso (uncredited)
Bing Crosby
Harry Turner
Bob Hope
Chester Babcock
Joan Collins
Diane
Robert Morley
Leader of the 3rd Echelon
Walter Gotell
Dr. Zorbb
Felix Aylmer
Grand Lama
Alan Gifford
American Official
Michel Mok
Undetermined Role (as Michele Mok)
Katya Douglas
3rd Echelon Receptionist
Roger Delgado
Jinnah
Robert Ayres
American Official
Mei Ling
Ming Toy
Jacqueline Jones
Blonde at Airport
Yvonne Shima
Dorothy Lamour
Dorothy Lamour
Peter Sellers
Indian Neurologist (uncredited)
David Niven
Lama Remembering Lady Chatterly's Lover (uncredited)
Dean Martin
Grape on Plutomium (uncredited)
Frank Sinatra
Twig on Plutomium (uncredited)
Dave King
Mr. Ahso (uncredited)