Jam Session is a 1944 American musical film starring Ann Miller.
Terry Baxter is a dancer from small town Kansas, trying desperately to break into movies after traveling to Hollywood.
She does everything from sneaking onto sound stages and disguising herself but she doesn’t have any luck.
All her breathless attempts to see the guy get her nowhere, but when she suddenly stops two men by tap dancing for them, they try giving her a screen test, but she walks out on them because she thinks they are making fun of her.
Everything is in a mess until she is freed by Raymond Stuart himself and becomes a big star.