Patrimonio culturale dell'Emilia-Romagna

Currently the museum exhibits 133 works by Italian and foreign artists, among them famous names such as Emilio Vedova and Mario Schifano. A room, the tower and the granary of the castle house creations by contemporary Italian artists; another room contains 11 works by foreign artists, a third one is devoted to the Milan master Gianni Brusamolino. An entire room is devoted to the creations of local artists, it includes 37 works by the main Piacenza artists, among them Cinello Losi and William Xerra. The museum, that includes some of the most up-to-date artistic trends, is of particular interest: like the great American museums of contemporary art, the MIM houses about 300 works, including paintings, drawings and installations, that are shown to the public on a rota, up to a maximum of 180 works at a time. Mim are in fact the initials of Museum in Motion (museum in constant evolution), a space employed for exhibiting on a rota the works of the contemporary art collection belonging to the Spaggiari family.

Starting from its establishment in 2011 the MiM has availed itself of the collaboration of the Parisian association D’ARS and of the fundamental aid of Pierre Rastany, who devised the museum's name, to testify the constant evolutionary process of collections aimed at enhancing the most significant expressions of contemporary art; since then the museum has counted on the organisation carried out by Roberta Castellani.
The museum is subdivided into three sections: international research is represented by Gonzalo Martin Calero, Roger Selden, Robin van Arsdol, Jaume Solè, Cordelia von den Steinen, Alzek Misheff, Javier Loren, while the Italian creative panorama by several artists, among them Alberto Allegri, Agostino Bonalumi, Gianni Brusamolino, Aurelio Caminati, Pino Chiari, Marco Cornini, Carla Crosio, Roberto Crippa, , Sergio D’Angelo, Gioxe De Micheli, Gianfranco Ferroni, Gianni Dova, Paolo Grimaldi, Omar Galliani, Ale Guzzetti, Ugo La Pietra, Giancarlo Ossola, Fabrizio Plessi, Bruto Pomodoro, Concetto Pozzati, Valentino Vago, Franco Vaccari and Walter Valentini. Particular attention is focused on the Piacenza art scene, represented by works of Carlo Berté, Armodio, Bot, Sergio Brizzolesi, Gustavo Foppiani, Mauro Fornari, Alberto Gallerati, Giorgio Groppi, Paolo Perotti, Ludovico Mosconi, Cinello Losi, Luciano Spazzali and William Xerra.
Museum in Motion is surrounded by a garden where there are some contemporary sculptures and installations of the post-cubist and post-metaphysical period by Gianni Brusamolino and by the conceptual and arte povera artist Pina Inferrera Curtò.
In 2004 the museum directorate set up the Luigi Pronti Award, for young photographers, in memory of the attention and consideration that the prematurely deceased director of the Piacenza Tourist Board had always bestowed on them.
The events organised by the museum are housed in Castell’Arquato, inside the Courthouse where several exhibitions have been set up, among these the personal exhibitions of Francesco Ferlisi, Gianni Testoni, Riccardo Bonfadini, Hiromi Masuda and the double personal one of Pinuccia Bernardoni and Antonio Violetta, and last but not least the Dario Rossi exhibition; among the collective exhibitions we recall La crisi della presenza and s.Finiti dall'arte, Sul lavoro e altri travagli, Chakra. Percorsi interiori espressi dall’arte, Installazioni architettate, Ecce Homo and Quarta, a selection of works by contemporary artists for a collection at the castle.
Starting from 14th October 2007 the MiM inaugurated the second stage of the travelling art review entitled Carosello Italiano that exhibits the works of forty-eight painters, ten sculptors, twelve photographers and one video artist representing the different contemporary trends of Italian art. "Una scultura per il parco - Annamaria Gelmi " was held in 2008 to celebrate the arrival of “Paesaggi”, a sculpture that found its permanent home on the grounds of the castle.