Having not seen Sam Worthington in anything prior to this film (except Terminator Salvation), I don't really have anything to compare his acting to. Some of the cast manage to make the most of what they're given to work with. If you're expecting anything more than that, then yes, you will probably be disappointed. To quote Sam Worthington from various interviews, it's basically him 'in a skirt with a rubber sword, killing monsters'.
Going by the previews, this looked like nothing more than a CGI-fest.which is what it pretty much ended up being. I wasn't originally planning on seeing this new updated version either. I've never seen the 1981 original version of Clash of the Titans.
