Francis X. Bushman's Messala helmet from Ben-Hur (1925) starting price $20,000
Claudette Colbert's signature Cleopatra gown from Cleopatra (1934) starting price $20,000
Stephen Boyd's Messala armour from Ben-Hur (1959) starting price $20,000
Duncan Lamont's Marius armour from Ben-Hur (1959) starting price $8,000
Elizabeth Taylor's Cleopatra headdress from Cleopatra (1963) starting price $30,000
Richard Burton's Mark Antony armour from Cleopatra (1963) starting price $20,000
The auction also includes a lot of set dressing (statues, banners, etc.) from Cleopatra (1963) and also several large concept paintings from that film. It's worth taking a look at the whole catalogue.
I could be wrong, but I think a lot of the starting prices are too high and the items will probably be passed over but there are many lots that are very reasonably-priced. It'll be interesting to see how it plays out! If nothing else, this auction gives us a rare close look at some iconic pieces of Hollywood history.