The Technicolor Time Machine

Why pay for costumes, scenery, props or actors when the most brilliant drama of all time is unfolding before your very eyes, in vivid colour -- in 1000 A.D.?
The head of ailing Climactic Studios has given producer Barney Hendrickson five days to get a major movie in the can--and Climactic out of it.
Impossible?
Not with Professor Hewett's miraculous time machine, the answer to a Hollywood producer's prayer.
Skipping back to AD 1,000 with a whole film crew and two glam stars, Barney sets out to prove that the Vikings discovered America five hundred years before Columbus--and to film the event in glorious technicolour. But it's not as easy as it sounds, as they realize when history lets them down and their Viking Columbus fails to show up in the New World...
Join the film crew of the stupendous motion picture saga Viking Columbus as they journey back in time to capture history in the making, in Harry Harrison's hilarious time travel romp, The Technicolor Time Machine.