I presume you have a DVD copy of ANH, and if not - why not! Either d/l one or, if you can, use a video capture card to record from VHS. Then use Hypersnap-DX (
http://www.hyperionics.com/hsdx/index.asp)to) take a screenshot and you're in business.
FYI: (site blurb) HyperSnap-DX is a screen capture and image editing tool for MS Windows. It captures screens from standard desktop programs and even those hard-to-grab DirectX, Direct3D, 3Dfx Voodoo and Glide mode games.
If you're wanting an extreme closeup then as I recall, cyberlink's PowerDVD has a zoom function.