Alien Nation, the movie

Just caught this movie 25 years after it debuted. Sorry that I missed it at the time as I enjoyed it and James Caan in it, you clearly needed a bad arse like him to deliver it straight and keep the movie from been too wonky. <br /><br />Funny I thought the girl playing Cassandra sounded a lot like Sigourny Weaver but it turns out it wasn't her playing an alien