Analysing the Codes, Conventions and Narrative of an Opening Title Sequence: Synopsis for Goodfellas

We were asked to create a synopsis to the film, as if we were writing for a website/newspaper/magazine etc. Here is what I came up with, for the film Goodfellas. 

From Martin Scorsese, a film following the lives of gangsters living in 1970s New York. Starring Robert De Niro, Ray Liotta and Joe Pesci, doing things that definitely earn them the title of anything other than 'good'.