The last waltz
I remember that Lubitsch version and loved it for the effervescent humor, the witticisms flipped at you like little crepes; at the same time it was a lavish production-- the ballroom scene alone had hundreds of extras and a thousand gaslights, and MacDonald wore a dozen gowns. Lubitsch, apparently, could direct a big production and still keep his signature airy tone.
Erich Von Stroheim's The Merry Widow you'd hardly recognize as the same creature except for the famous waltz that plays a prominent role in the plot. He delves into the widow's backstory, building up a failed romance between the widow (Mae Murray)-- who starts out as Sally O'Hara, dancer for the traveling show The Manhattan Follies-- and Prince Danilo (John Gilbert); against them he pits Crown Prince Mirko (Roy D'Arcy), a repulsive example of royal inbreeding, all smirks and leers and hypocritical fastidiousness (he loathes flies, but laughs in agreement when Danilo calls him a swine).
