This show I really recommend. With that Irish guy from IT crowd as the main hero. Comedy-drama, strong cast, good actors all around, good writing, entertaining scenes.
It's about a gangster trying into movies and leave behind his criminal past and just cannot since the tricks he learnt back then coming way too handy... also boss wants a slice from that pie too.
Was a movie back in '95 which I haven't seen, maybe watch that too. Both based on a book I believe.