Why do I have the trailer for a crappy Bonnie and Clyde ripoff? It's not because of the involvement of Dick Clark, although he was quite involved indeed: co-writer, co-producer, co-star. No, it's because Merle Haggard played a sheriff in the movie (spoiler alert: can you believe it, Dick Clark kills Hag in the picture!) Haggard is all over the soundtrack, which features a song he had only recently recorded, a song that became one of his most famous tunes: "Mama Tried".
The song has been covered by a large number of artists, including the Grateful Dead, who played it over 300 times live, including at Woodstock: