[1] He later taught music history at the Accademia di Belle Arti (English: Academy of Fine Arts) in Sassari and film direction at the Scuola Golden in Turin.
[1] In 1987, he was assistant director to Giuseppe Piccioni for the feature film Il Grande Blek, starring Sergio Rubini and Francesca Neri.
[1] He then starred in two films directed by Gabriele Muccino: Ecco fatto (1998) and Come te nessuno mai (1999), where he played the role of the head of police.
[1] In 2000, Grimaldi directed Un delitto impossibile (English: An Impossible Crime), starring Lino Capolicchio, Carlo Cecchi, Ivano Marescotti, Ángela Molina, and Silvio Muccino.
In 2009, Grimaldi directed the Canale 5 television film Due mamme di troppo featuring Angela Finocchiaro and Barbara Matera.