In a Lucio Visconti movie, Simone and the title character played by Alain Delon take up this profession after meeting the sex worker Nadia in Rocco and His Brothers. After being egged on, a black man with this profession in one film is shown panting in front of lights as the sound of a crowd fades out during a dolly zoom. At the end of another movie, a man with this profession about to perform standup struggles with the line "it was you, Charlie" while reciting a movie scene to himself in a (10[1])(*) mirror. That scene references an Elia Kazan movie in which a longshoreman reflects on failures in this profession in a speech with the iconic line "I coulda been a contender." For 10 points, name this profession formerly held by Marlon Brando’s protagonist in On the Waterfront and by Jake LaMotta in Raging Bull. ■END■