A Funny Thing Happened on the Way to the Forum is a musical with music and lyrics by Stephen Sondheim . Inspired by the farces of the ancient Roman playwright Plautus, the musical tells the bawdy story of a slave named Pseudolus and his attempts to win his freedom by helping his young master woo the girl next door. The plot displays many classic elements of farce, including puns, the slamming of doors, cases of mistaken identity (frequently involving characters disguising themselves as one another), and satirical comments on social class. The musical's original 1962 Broadway run won several Tony Awards, including Best Musical and Best Book. A Funny Thing has enjoyed several Broadway and West End revivals and was made into a successful film.