Sissi

"In this lush historical romance set in 19th-century Austria, young princess Elisabeth "Sissi" (Romy Schneider) captures the eye of Emperor Franz Joseph (Karlheinz Böhm), who is betrothed to her older sister Helene. Despite their differences in station and family ties, Sissi and Franz Joseph find themselves drawn to each other, but their love faces opposition from his mother, Archduchess Sophie, and Sissi's own sense of loyalty to her sister. Will their love prevail, or will duty and family obligations tear them apart?"

You can stream Sissi on: Netflix

Some movies that have similar genres and were produced around the same time as Sissi include Roman Holiday, The Apartment, Llegaron siete muchachas, My Last Tango, A Hole in the Head.