At least hire an actress that looks like she can easily lift more than 10 pounds. Reminds me of the huge guns in Tomb Raider. Angelina Jolie's arms looked like they were shaking in some shots and looking malnourished while pulling off gun fights and intense stunts does not impress the movie goer. This is NOT like Linda Hamilton in T2 or Sigourney Weaver. If you are not going to put the effort into beefing up your actress or cast her correctly then sorry, it is just cooler when a muscle-bound jock with little acting ability easily lifts/holds an oversized sci-fi gun.