I've not seen it, but I gather that the movie Slipstream has some interesting use of the CFM Shadow and Edgley Optica.
Not SF, but the heavily modified Bell 222 in Airwolf.
Modified Transavia PL-12 in Mad Max beyond the thunderdome.
Unmodified YB-49 in "The War of the Worlds" from the 1950s.
I'm sure I'll think of some more later.
G