Revealing mistake: When "Pop" dies, you can tell he is still breathing, especially if you fast forward the scene. He is just doing it very slowly, but you can see his chest move up and down.
Grumpier Old Men (1995)
Ending / spoiler
Directed by: Howard Deutch
Starring: Walter Matthau, Daryl Hannah, Jack Lemmon, Kevin Pollak, Ann-Margret, Sophia Loren
Maria ditched Max because she's had five failed marriages, and doesn't want to hurt Max. Max wins her back, and they get married.
Arnprior
More mistakes in Grumpier Old Men
Maria: Ox.
Max: Nag.
Trivia: Ann Morgan Guilbert plays Mama Ragetti, the mother of Maria Sophia Coletta Ragetti (Sophia Loren). In real life, Guilbert is only six years older than Loren.