It’s a Vietnam War movie, so of course there’s a soundtrack packed with 1960s pop and rock — “Cherish” (badly used) to “Let It All Hang Out,” it’s not “Good Morning, Vietnam,” but “The Greatest Beer Run Ever” does blow through some cash on music rights.

No, Zac Efron doesn’t sing in it. Or dance.

Set in 1967, here’s a song that we haven’t heard in any of the scores of films set in and during the Vietnam War. Remember, many Vietnamese spoke French, as the French had just been forced out in the previous decade. So if the locals were jamming to The Beatles, they just might have preferred the French version, also a hit, recorded by this legend.