Check trade marks for 1963-64. Paramount took (and still owns, and protects) the word “Annette.” Disney most likely failed to file along with “cubby,” “Sharon,” “bobby” and “Madge.”
Back to the Beach, a 1987 satire directed by filmmaker Lyndall Hobbs, is based upon a huge series of films produced at Paramount during the 1960s. It's quite an oddity, as it turns 180 degrees from those original films - that began with Beach Party (1963), followed by well over a dozen "beach"...