Colin Farrell & His Dublin Dude

Sporting a band on his ring finger, Colin Farrell and his 6-year-old son James were spotted at the wedding reception of Colin's older brother Eamon Farrell and husband Steven Mannion in Dublin, Ireland on Sunday (December 27). Eamon wed his longtime boyfriend in Canada over the summer, but celebrated the nuptials with his family and friends in Ireland over the holiday season.

"We have to get married abroad. It's absolutely terrible," Eamon said of Irish laws against same-sex marriage. "We have to go somewhere legal, which narrows it down to about five countries."

The 33-year-old Phone Booth star - who was best man at his brother's wedding - welcomed his second son, Henry, with girlfriend Alicja Bachleda on October 7. James' mother is Colin's ex-girlfriend, Kim Bordenave.