If you weren’t aware of the film I’m not surprised you were fooled. They’re pretty convincing shots and if they’d been presented to me as genuine by a (formerly) trusted source then I don’t think I’d have questioned their authenticity either.
However you weren’t entirely fooled. Without even seeing the film, you correctly identified it’s one redeeming feature; Lt Kara Wade a.k.a. the beautiful Jessica Biel.
'My Auntie Mabel told me I'd make a great soldier, though I don't know how 30 years working in a biscuit factory had qualified her to make that judgement.....' Eddie Nugent