The camera focuses on a few of Sam's things; a copy of The Black Hole, a Rubik's Cube, a pair of TRON figures, a Marvel Comic Book (with Galactus on the cover) and a pocket-sized Coleco Video Game. (Oddly, this combination of items doesn't appear in the wider shots of Sam's room.)
The Black Hole was a science fiction film released in 1979 by Walt Disney Studios. The Disney Company hoped to create its own vessel to tap into the sci-fi popularity created by Star Wars. Somewhat successful financially, The Black Hole was easily forgettable, overshadowed by George Lucas' original trilogy. Coincidentally, TRON: Legacy director Joseph Kosinski has been attached to a rumored Disney remake.
Image © Walt Disney Studios