Start by trying to determine the date, who was the photographer (or photographer's employer), and whether the photograph was ever published. Then see the related question, "How long does a copyright last?"
All of your photos are protected by copyright as soon as you take them.
Photos you take in Paris would automatically be protected by copyright.
Probably not. If you look at the Properties of the image, there should be more information.
Yes. All of the photos taken in the movie are protected by copyright.
Photos online would be protected by copyright unless specifically stated otherwise.
The phrase "copyright obtained" doesn't give any indication of who copyright might be assigned to.
Bear in mind that generally copyright protection is automatic as soon as an original work is completed so no action is required.If you want the additional protection of formal copyright registration you will need to contact the copyright/intellectual property office in your country. For information on US copyright procedures see the related link below.
Probably not unless they have a copyright on the photos.
Do you mean copyright protected? Yes, they are.
maybe copyright?
Yes. There is no minimum age for copyright protection, and the images are automatically protected as soon as they are taken.
Photos are automatically protected by copyright as soon as they are taken, and the photographer is the rightsholder unless other arrangements were made.