I just thought that Duke on that poster looks a bit like [url=http://en.wikipedia.org/wiki/Frank_Klepacki]Frank Klepacki[/i]. Could it be that someone went for a hidden
C&C Commando reference here?
I actually had a rather complicated train of thought that arrived at this idea

:
1. Duke's face on the poster somewhat reminded me of Frank K.
2. Your discussion of the girl reminded me of the fan art where Duke is paired with Lara Croft.
3. The "Shake it baby!" quote came to mind.
4. It just so happens that "Shake it baby!" is also one of Tanya Adams' (
Command & Conquer: Red Alert series) quotes.
5. Tanya Adams would, in fact, make a great female counterpart to Duke, genre distinctions notwithstanding.
6. Frank K did the voice of the Commando, the male counterpart to Tanya from the first
Command & Conquer.
7. Back to point 1