Isaidub | Piranha 3d 2010

Now, the user wants a useful review. So I need to cover the main aspects: plot, acting, directing, effects, and maybe the dub in this case. The structure should be clear, maybe a summary of the plot, positive points, negative points, and a recommendation. Also, considering it's a 3D movie, the effects are a key point. Since it's a 2010 film, the 3D technology was still relatively new, so that could be highlighted.