Visible crew/equipment: When Charlie practices with Ray placing cards on the car's hood, someone next to Ray is seen reflected on Charlie's sunglasses.
Visible crew/equipment: When Charlie is taking Ray to the bar for his date with Iris, in the mirrored wall behind them you see a lady in a blue shirt motioning for the extras to walk by the camera.
Answer: It's "I Saw Her Standing There," written by John Lennon and Paul McCartney, released November 1963. In addition to the Beatles, the song has been covered by Elton John, The Grateful Dead, Tiffany, and many others I'm sure.
Matty Blast
In December 1963, Capitol Records released the song in the United States as the B-side on the label's first single by the Beatles, "I Want to Hold Your Hand."