The Indiana Jones films are great.
I haven't seen the new one yet, but when I think back over all 3 movies, there are many vehicle inaccuracies, because I think Spielberg took a "who cares" approach. His emphasis is just having a good action flick I think. I sort of respect him for it - you know, just make a fun film and to heck with historical accuracy.
The wierdo flying wing in raiders of the lost ark was pure fiction, but looked good, and what about those bikes in the chase in the last crusade? Modern dirt bikes in pre world war II Germany.............
It is fun trying to identify these various vehicles though.
As for other film inaccuracies, I don't know if you've seen any trailers / adverts for that film Pearl Harbour - there were inaccuracies where they said that it was good, and that people should go and see it.
And let's not forget those Matchless's in "the wild one" - look carefully, they're in the gang - an often overlooked marque, but plenty good in their day - and the first bike to actually ride 100 miles in an hour.
Right, I lost my way a bit there. Good show and all that, carry on.