Not who you're looking for? Others named My Sister and I: book by Friedrich Nietzsche · 1954 film by Paul Martin · 1929 film by Manfred Noa · 1948 film by Harold Huth
"My Sister and I" is a 1941 song written by Hy Zaret, Joan Whitney and Alex Kramer, recorded by Jimmy Dorsey, with vocals by Bob Eberly.