St. Patrick’s Day has come and gone, but director Niall Heery is still enjoying the luck of the Irish. His 2014 film, “Gold,” which he co-wrote with brother Brandan, is the Boston Irish Film Festival’s “Best Feature” selection and was screened at Somerville Theatre Thursday. “I consider myself to be very fortunate,” said Heery, 41. “And being in Boston is very exciting for me.” It was Heery’s second time at the film festival; he was last here when his first full-length feature, “Small Engine Repair,” screened in 2007. An offbeat comedy about a man returning home to reconnect with his ex-wife and teenage daughter, “Gold” features a number of well-known Irish performers, including David Wilmot, Kerry Condon, Steven Mackintosh, and James Nesbitt, who played Bofur in “The Hobbit” trilogy. The film also stars Maisie Williams, who is in HBO’s “Game of Thrones” as Arya Stark. “I’d been a big fan of ‘Game of Thrones,’ so I knew her work,” Heery said of the young actress. “Though she was kind of young, she was a seasoned pro.” The Dublin native said he was looking forward to spending a couple days in Boston, and wished he’d been around for the St. Paddy’s Day festivities. “It’s a shame I missed the parade. It would have been a real treat to see it here.”