Hey hey. Don't say "they." I'm referring to the first one only.
And yeah, the acting sucked at times, and some of the scenary was stupid (Shang Tsung has a statue fetish, apparently), and the final battle was pretty lame. But I felt that the majority of the fights were executed nicely, and the script's story stayed close to the games (with the exceptions I already stated).
I'm not saying it was perfect, but it's the best you're gonna get, until people start listening to me when it comes to making a movie based on a video game.