Uncle

An amateur musician of stunted emotional growth is reluctant to take care of his young nephew, but as his reluctance grows, his other emotions begin to follow to the fore, meaning he may even become a better, more-rounded person.

Uncle is a 2012 comedy movie, starring Daisy Haggard, Nick Helm, Daniel Lawrence Taylor. It holds an IMDb rating of 7.8/10 from 4,681 votes and runs 30m.