>One of the things that my daughter pointed out about 3D movies is that because they are 3D your brain thinks it should be able to shift the focus but it can't and that 'fight' gets in the way of enjoying the content.

My two grown daughters and I avoid 3D movies. We have all come to the conclusion that the 2D versions are more enjoyable. Plus our local theater is now digital in 4K. We love that theater experience.

[edit] fixed typo