According to Sir Georg Solti’s entry at the Internet Movie Database, his recordings have been included on numerous movie soundtracks.
Several works by Tchaikovsky were included in the 1997 film Anna Karenina. Excerpts from Mozart’s Requiem were included in 1993’s The Heartbreak Kid, and selections from Bach’s Saint Matthew Passion were included in 1995’s Casino and 2005’s Domino.
Excerpts from Solti’s opera recordings have been used on many movie soundtracks. 1996’s Thieves and 2010’s Eat Pray Love featured music from Mozart’s Die Zauberflöte, and 2004’s Closer included music from Così fan tutte. Arias from Verdi’s Rigoletto were heard in 1987’s Aria and 1999’s Analyze This. And an excerpt from Strauss’s Salome was included in 1987’s Mascara.
Selections from Wagner operas have been frequently used, including: the opening to Das Rheingold (1979’s Nosferatu the Vampyre), the prelude to act 3 of Lohengrin (2000’s Ready to Rumble), and the first act of Die Walküre (2004’s Birth).
Of course, the most frequently used excerpt is the Ride of the Valkyries from the third act of Wagner’s Die Walküre. It has been heard in 1987’s Critical Condition, 1993’s Café au lait, 2001’s Freddy Got Fingered, 2005’s Jarhead, 2007’s Norbit, and perhaps most famously in 1970’s Apocalypse Now.
The scene from Apocalypse Now is viewable below (warning: for mature audiences only).