Something that always bugged me in Star Wars are the holographic transmissions.

For some reason the "hologram person" often looks right at the eyes of the person he speaks to. And this is not always possible.

Let's suppose Obi is speaking to the Jedi Council, shown by little hologram in front of him with all the members. Once we see the scene FROM the council chamber, seeing Obi Wan turning his head right and left depending to whom he's talking to is not possible. Because Obi don't see the council members as big holograms all around him.

I know Star Wars is not pure Science Fiction, and this is a way to not loose the audience too much, but it's wrong, continuity wise.