basically this be about a couple who want to adopt a second child . at the adoption agency they meet a mouse ( stuart ) and they decide to adopt him . if you think that this be stupid and hold it and because it get worse . stuart arrive to his new home and where he be treat like a human child . ( spare me . ) the rest be pretty much the usual cliché and about family problem and jealousy from the elder brother and and at the end all issue be resolve and they be all a happy family . boring and wear out a this be and it be also show in the most blunt and unsophisticated way . i do not know if the director believe that he be be creative by introduce a mouse to the cliché and or he be just try to fill in minute and but he only upgrade the cliché from bore to abhorrent . then why i give a 3 and not a zero . because of the family cat and who love stuart as much a the brother . and because of some funny gig and where stuart make good use of his small size . on the overall i believe that the film would work reasonably well if represent a. stuart be a pet and not a sibling . b. it have keep to the funny gig and like stuart try to outwit the cat and and have leave out bore clichés which do not even match with anything else .