Corri had a major stage career, appearing regularly both in London and in the provincial theatres. She appeared in one of the first English performances in 1968 of "Come and Go", Samuel Beckett's one-act "dramaticule", in Beckett's coinage, performed at the Royal Festival Hall as part of "a gala entertainment concerning depravity and corruption" (the words coming from the nineteenth-century definition of obscenity), sponsored by the National Council for Civil Liberties and the Defence of Literature and the Arts Society, which raised funds to support publishers being prosecuted for obscenity. It was directed by Deryk Mendel, with Corri appearing alongside Marie Kean and Billie Whitelaw in the roles of Flo, Vi, and Ru.