Too bad everything else in that movie is wrong.
Pedecaris was a 45ish, fat little man, not an attractive woman. The Marine/Navy shore party only seize the customs house at Tangier (without a fight) and sat on their duffs for the next 15 or 20 days. And, there were no Germans. But, the French did beef up their garrison in case the Marines tried to do anything thing other than prevent the customs house operations.
By the way Ion Perdicaris wasn't even an American citizen, he was Greek....
But, it does show the correct manual of arms for a saber, until he double-times with one. (You don't grasp the blade, you just run with the saber at port arms.)
Oh, and the Major's uniform is incorrect, it should look like this:
View attachment 759718
Only with the cuff lace of this pattern (in black)
View attachment 759719