Connections

A variation on "Funeral March of a Marionette", the series' theme music, is incorporated into the score as Alfred Hitchcock makes his customary cameo appearance

Climactic stage ballet sequence evokes the stage concert sequence at the Albert Hall.

The post office sequence evokes the scene where Cary Grant is falsely accused in a crowd at the terminal.

The killing of Gromek strongly resembles Psycho when the peasant wife uses the big knife and stab Gromek.

When Clint can't kill the gangster no matter how much he shoots him is like the famous Gromek sequence where Paul Newman has as hard a time. A kind of spoof of overkill.