The app menu contains an "Open" item. This activates a file chooser dialog with the title "Select Movies or Playlists", which has "Add" and "Add Directory" buttons. It's confusing - am I opening or adding? We should choose one and be consistent with the terminology.

If the action adds the items to the movie grid, "add" would seem like the better choice. Otherwise, I would probably go with "play" (since you don't tend to open a movie).

Additionally, the app menu entry should have a "..." after it, and the default action in the dialog should be on the far right side (as is the convention in GNOME).

If we go with Add, it would look like:

"Add..." > "Add Movies or Playlists" > "Add Directory" / "Add"