An enchanted operetta set in the remote Norwegian Alps, The Lottery Bride evokes the storybook romances of Ernst Lubitsch and Rouben Mamoulian. It weaves the tale of a young tavern hostess (Jeanette MacDonald) who finds herself torn between a young student (John Garrick), a dashing Italian aviator (Joseph Macaulay) and a rugged miner (Robert Chisholm).   Through these complicated romantic maneuverings are woven a series of lively songs by Rudolf Friml and J. Kiern Brennan, including the rhapsodic "My Northern Lights." Spectacular visual effects devised by William Cameron Menzies (including a zeppelin crash in the arctic wasteland) and splashes of comedy by Joe E. Brown and Zasu Pitts help make The Lottery Bride a deliriously far-fetched melodrama that could only have emerged from the fearless early years of the Hollywood musical.