What is the first US movie to receive a PG-13 rating?

During the early 1980s, a number of PG-rated movies containing surprisingly violent content sparked off an overview of the ratings system. Two violent PG-rated movies affiliated with Steven Spielberg - 'Indiana Jones and the Temple of Doom' and 'Gremlins' - were the catalyst for the MPAA to modify the ratings system and introduce the PG-13 rating in 1984 (July 1). This rating still allows children under 17 to be admitted without a parent or guardian, but the rating does note that parents are "strongly cautioned" to be aware of potentially shocking violence or sexual content. The first movie to officially be released with a PG-13 rating was 1984's 'Red Dawn.' The new rating also sparked a wave of generally mediocre PG-13 "teen movies."
https://en.wikipedia.org/wiki/MPAA_film_rating_system


'Red Dawn' was the first motion picture released with the PG-13 rating, which had been created after difficulty rating some movies in 1984, most notably 'Indiana Jones and the Temple of Doom.'
'The Flamingo Kid' was the first film to be *given* a PG-13 rating, but sat on the shelves for five months before being released.
http://imdb.com/title/tt0087985/trivia