Continuity mistake: When Harbinger jumps out the plane he has face paint on but when he lands it's gone.
Visible crew/equipment: When Michelle is at the dinner she asks Topper for a light and strikes it on her leg. As she starts to move her leg, you can see the black strip on her leg to light the match. (00:27:30)
Continuity mistake: When the American prisoner is being tied to the electric device, the twisty-tie is on his bare skin. In later shots, it is on his sleeve. (00:22:20)
Continuity mistake: When Topper is trying to get the keys to free the colonel, he knocks the pepper-shaker over, but there's no visible concentration of pepper. After the colonel gets the keys, a mouse is shown on the table. It goes up to the newspaper and sneezes from the mound of pepper which was not there before. (01:12:40)
Chosen answer: It appears to be his initials "SH" in the style of the New York Yankees "NY" logo. He's also wearing pinstriped pajamas that look like the Yankees uniform.
Bishop73
I was expecting it to be some kind of Arabic symbol, but I can see the initials now, and it fits his character.
Phaneron ★