The highly anticipated TCM Presents…There's No Place Like Hollywood auction from Bonhams will star a jacket worn by Clark Gable in Gone with the Wind.
The auction, which takes place on November 24 in New York, is the second collaboration between Bonhams and Turner Classic Movies, the first of which saw a Maltese Falcon statuette sell for $4m last year.
This year's instalment features a piano from Casablanca, as well as the $60,000-90,000-valued Clark Gable jacket.
Also starring is one of the test dresses worn by Judy Garland as Dorothy in the Wizard of Oz, which is estimated at $200,000-300,000.
The original dress seen on-screen made $480,000 in 2012, while another of the prototype dresses sold in 2011 for $910,000.
"There were several variants made before they settled on the one we all know from the film," said Bonhams' Catherine Williamson, head of entertainment memorabilia.
"It doesn't appear on screen but we do have stills of Judy Garland modelling it. They took pictures and then the producers would take a look and see if they liked it or whether they wanted to make more tweaks."
Another of the star attractions in the sale is Marilyn Monroe's saloon gown from River of No Return, which is valued at $400,000-600,000. It will attract big bids, as it is featured not only on-screen but also in publicity shots for the film.