Movie scene bunny, free for the taking

In big movie musicals, people often burst into song in a busy city street, and dance through the street in perfectly choreographed precision.

I want to see a musical where people burst into song in the typical cliched manner, perhaps sing the first verse without dancing, sing the first chorus dancing in place, then attempt to dance down the street. However, all the street traffic keeps getting in their way, and their valiant efforts to complete their song and dance are increasingly hindered by pedestrians and dogs and streetcars and hot dog carts.