"An American movie company wants to shoot a science-fiction film using a British army barracks as a location, and its soldiers as actors."
Brian Reece
as Capt. Bill Harper
Margot Grahame
as Wanda Sinclair
Raymond Huntley
as Col. Fred Bellamy
Sid James
as Ed Waggermeyer
Tony Hancock
as Lt. Wilfred Cartroad
Peter Sellers
as Pvt. Goffin
Clive Morton
as Gen. Sir Cuthbert Grahame-Foxe
June Thorburn
as Veronica Bellamy
Maureen Swanson
as Joanne Delamere
Peter Martyn
as Lt. John Broke
Bill Fraser
as Pvt. Slee
Edward Lexy
as Capt. Ledger
Barry MacKay
as R.S.M. Benson
Donald Pleasence
as Cpl. Martin (as Donald Plesance)
Eric Sykes
as Pvt. Waterhouse
Michael Trubshawe
as A.D.C.
Maureen Pryor
as Miss Marigold
Donald Hewlett
as Lincoln Green
Reginald Hearne
as Sgt. Spurway
David Paltenghi
Director
Geoffrey Orme
Screenplay
Additional Dialogue
Donald Taylor
Anthony Hearne
Assistant Director