Here Is My Heart is another escapism romantic flick during the Great Depression intended to show poor audiences that rich people are frivolous and silly. So is the rest of this film.
Bing Crosby is a bored millionaire who falls in love with a princess, Kitty Carlisle, but due to being in the wrong place at the wrong time, she thinks he's a waiter. To have a little fun, Bing plays along and pretends he's a penniless servant; Kitty wants nothing to do with him. My question is, why does he want anything to do with her? Can't he recognize she's snobby and make a play for someone else? Apparently not, and if you don't like Kitty, you're not going to like this movie.
In a hilarious scene, Bing listens to a record of his own recording of "It's June in January", sings harmony with himself, and after listening to a high note, comments to the recording, "Ah, you made it!" When Bing is by himself or coming up with funny schemes with his buddy, Roland Young, the movie isn't that bad, but Kitty is just too much of a one-dimensional villainess and tends to ruin the scenes she's in. If you do end up liking this one, though, check out We're Not Dressing, which is very similar.