Seven Sweethearts is a 1942 musical film directed by Frank Borzage and starring Kathryn Grayson, Marsha Hunt and Van Heflin.
In 1949, Hungarian playwright Ferenc Herczeg sued MGM, producer Joe Pasternak and screenwriters Walter Reisch and Leo Townsend for $200,000 alleging that they had plagiarized Herczeg's 1903 play Seven Sisters, which Paramount Pictures had adapted into the 1915 film The Seven Sisters, starring Madge Evans.
They include an English version ("There Is a Dreamboat on High") of a berceuse (Wiegenlied/lullaby), long attributed (and in the film) to Mozart, but it was in fact composed by Friedrich Fleischmann (Schlafe, mein Prinzchen, schlaf ein, 1799).
At a climactic moment in the tulip festival the aria "Je suis Titania" (from the French opera Mignon) is heard.
Other songs written by the team of Walter Jurmann (music) and Paul Francis Webster (lyrics) featuring Kathryn Grayson as soloist include "You and the Waltz and I", "Little Tingle Tangle Toes" and "Tulip Time".