With the opening of the Anna Karenina and Keira Knightley's grand return to period costume, we are reminded why women used to squeeze themselves into lethally restrictive undergarments. Sure, corsets are basically the antithesis to all things feminist and sensible, not to mention the whole rib-cracking, lung-restricting, fainting thing. But the buoyant butt-boobs! That romantic, brocade-draped silhouette, perfect for palace intrigue! From Gone With the Wind to Amadeus to Titantic, take a look at 25 period dramas with costumes so sumptuous and visuals so dazzling that we'd almost subject ourselves with corsets to live in their worlds. Almost.