“Write what you know,” is the sage advice usually attributed to Mark Twain. And comedian extraordinaire, Sebastian Maniscalco, has made a very successful career taking it literally. Although his standup act has brought him fame, his latest project, the autobiographical film “About My Father,” is the passion project he says his father has “been living 77 years for.”Although many of the story details of the comedy film that Maniscalco both stars in and co-wrote are fictional – but what is hit-the-nail-on-the-head true is his relationship with his father, played in the movie by Robert De Niro.“My relationship with my father’s pretty accurate.