The best replacement for 2001 is solaris.

The best alternatives to 2001 are rated as following:
★★★★★  solaris
★★★★  iso9001 2001
★★★★  gravity
★★★★  iso9000 2001
★★★  as9100 2001
★★★  3001
★★★  psp 3000
★★★  blade runner
★  2004 godzilla
★  iso 9000 2001
★  planet of the apes
★  firebolt
★  psp 2000
  intruder 800

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Speaking about 2001, one probably shouldn't forget about echoes.

Other search terms related to 2001 and their ratings are:
★★★★★ echoes
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2001
solaris
iso9001 2001