The American President--a bit of nostalgia, for a time when presidents could have 61% approval ratings, and White House staff that actually worried about making sure that they supported the president in making the right decisions. The main crux of the movie is that the widower president falls in love with a lobbyist, and is then targeted for it during the ramp-up to a re-election campaign by an opponent who runs on fear mongering and lies. It's what ultimately led to Sorkin's show, The West Wing, and features similar "walk and talks" and dense, intelligent dialog from capable, opinionated people (what a friend of mine refers to as "liberal porn"). (On Hulu Plus)
Lost in Space--Danger! Will Robinson! This is the extremely muddled, overly-long attempt to reboot the "Lost in Space" series as a movie. There are moments that harken back to the original series, but they are essentially overshadowed by a poor time travel plot, and wooden characterizations. ("Recommended for me" on Netflix)
Babylon5, Season 3--The Shadow War season, and probably one of the finest examples of SF on television. (DVD)