This Salon review of horror flick 28 Days Later asserts that whereas
. the classic British dystopian sci-fi novels of J.G. Ballard and John Wyndham as influences, and they’re in there, all right …. [but] George A. Romero’s “Living Dead” trilogy, specifically the underrated third entry “Day of the Dead,” is so closely emulated here that parts of “28 Days Later” feel like a shameless rip-off.
In fact, the plot, as described in the review, is a carbon copy of Wyndham’s Day of the Triffids (except with zombies instead of carnivorous walking plants). The film version of this was pretty lame as I recall, but the book was excellent.
My question is, can a film be a shameless ripoff of two completely different sources at the same time? I guess it can be if it takes the plot from one and the cinematography from another. I don’t think I’ll bother going to find out, though.