https://latimesblogs...son-ford-s.html
And regarding the last movie, I know some didn't like it due to the story of it but I found someone posting this comment on that article that makes a lot of sense and is pretty funny...
"I enjoyed the factual basis of the first three movies" - This always tickles me, we have a box which emits the wrath of god, three magic stones and a cup guarded by a knight who was hundreds of years old - but a UFO is too far fetched?!!!!!