Why not? We use these guys for everything else, lets use them to get some free publicity for an actress that has no idea where these guys have been Hope she does some homework so if anyone asks her where Afghanistan is located, she can at list point on planet earth.
I'll say this, most of the time I could care less what Hollywood has going on, but if she's cool about this, and doesn't turn it into some sort of circus, she will both be ingratiating herself to every military member out there, and will get a perspective that will change her life. Just let it be a night she uses to be a gracious guest of the good Sergeant, and to meet and chat up his fellow Marines, and she'll become a hero to those guys of epic proportions.
What is it the SAS say? Who Dares, Wins?