SUA, Resurse naturale

• 

  Ei sunt printre noi (2004)

  They Are Among Us

• 

  Journey Into Amazing Caves (2001)

• 

  Experimentul (1996)

  Bio-Dome

• 

  Teren minat (1994)

  On Deadly Ground

• 

  Un dusman al poporului (1978)

  An Enemy of the People

•