I wish Hollywood would get back on track with special effects. Today everything is just full of green screen, often dodgy cgi, and shaky camera work. I know some people will disagree by calling this a film "technique" or "style" but this awful trend needs to die. Granted some movies do really well with both green screen technology and CGI but far too often is it executed properly. Hollywood please go back to making real sets and kit-bashing models.
What I hate the most is when a creature, vehicle, scenery, or anything else made of CGI is rendered at a different frame rate than the actual actors. My eyes can always pick it out and it makes the superimposed nature of said creature or vehicle look completely fake. This is one reason why I liked Avatar because everything behaved in response to actual physics. Nothing moved ridiculously fast which is often a attempt to hide sub par CGI effects.