This film, by Norwegian film maker Terje Toftenes, is now free to watch here. There isn't a lot that's new, but it is quite nicely done, and there are some interesting snaps etc.
I have always been fascinated by the possibility that we have been visited. I don't like the current skepticism which seems to regard even considering this possibility as being hopelessly deluded. I believe that - as in most things - there is a spectrum which ranges from people who are mistaken in what they have seen or believe, through people who have seen something which can't be explained, to people who really are deluded or who are using the interest in Ufology for their own gain.
Unfortunately, the progress in special effects and computer assisted design mean that it becomes ever more difficult to assess whether films are real and accurate depictions of what they purportedly show, or fakes. That there are fakes is undeniable... that there is a possibility that some of them are not fakes is what is interesting.
Just to add to the confusion, I do believe that this subject is not treated scientifically by government or the scientific community. If people dismiss reports, refuse to record them, or suppress them, it is impossible to make a scientific assessment of the evidence. It seems inexplicable to me that some of the more famous cases do not appear in the official record because, even if they turn out to be attributed to weather balloons, satellites, delusion, the fact that the have been reported should lead to a record being created, and often hasn't, even when people involved have reported things which - if true - would be matters of national or even global security.