Editing Walter Matthau (section)

===1990s===
Matthau narrated the ''[[Dr. Seuss|Doctor Seuss]] Video Classics: [[How the Grinch Stole Christmas!]]'' (1992), and played the role of [[George Everett Wilson|George Wilson]] in the film ''[[Dennis the Menace (1993 film)|Dennis the Menace]]'' (1993). In a change of pace, Matthau played [[Albert Einstein]] in the film ''[[I.Q. (film)|I.Q.]]'' (1994) starring [[Tim Robbins]] and [[Meg Ryan]].

His partnership with Jack Lemmon became one of the most enduring collaborations in [[Cinema of the United States|Hollywood]]. They became lifelong friends after making ''The Fortune Cookie'' and would make a total of 10 movies together—11 counting ''[[Kotch]]'', in which Lemmon has a [[cameo appearance|cameo]] as a sleeping bus passenger. Apart from their many comedies, the two appeared (although they did not share any scenes) in the [[Oliver Stone]] drama ''[[JFK (film)|JFK]]'' (1991). Matthau and Lemmon reunited for the comedy ''[[Grumpy Old Men (film)|Grumpy Old Men]]'' (1993), co-starring [[Ann-Margret]], and its sequel ''[[Grumpier Old Men]]'' (1995), co-starring [[Sophia Loren]]. This led to further pairings late in their careers, including appearances in [[The Grass Harp (film)|''The Grass Harp'']] (1995), ''[[Out to Sea]]'' (1997) and a Simon-scripted sequel to their much earlier success, ''[[The Odd Couple II]]'' (1998).

''[[Hanging Up]]'' (2000), directed by [[Diane Keaton]], was Matthau's final appearance onscreen.