I only saw the ending of this movie but it stood out. I’m sure its from the 70’s, Its some sort of chase movie, a group of young people are evading the local cops for some reason. They are driving around in the country trying to reach an area that has a bunch of highways and byways that the cops won’t be able to catch or trap them so that they can get away. They manage to get to that area and they start celebrating that the cops won’t be able to get them now. While they are celebrating they die in a train crash then the movie ends.

I remember a movie from the 80’s where a group of guys went to either South or central America looking  for some lost plane cargo/treasure. One of the guys helping them was a political refugee of some sort who mainly went back to see an old girlfriend. There was a scene of the political refugee getting clean and ready in the jungle in front of the other guys. I think they found the cargo/treasure in an old military base or satellite facility. I had thought the refugee was played by Raul Julia but I checked his filmography, its not him.