Starforce (2000)

Blatantly braless babe with large bosoms in grey shirt for most of the movie. Since she doesn't jiggle or bounce, it may have been some bra-like thing designed to give the appearance of being braless. Either way, it's so obvious that it's almost comical. No sex or nudity, only a kiss at the end.

Lots of shooting (and lots of missing). A few explosions. Oversized spider-like cave creatures attack people.