Why Casey Affleck didn't attend his brother Ben Affleck's wedding to Jennifer Lopez

Ben and Casey Affleck, suited and smiling.
Casey Affleck didn't attend his brother Ben's three day wedding celebrations. Photo credit: Getty Images

Casey Affleck has missed his brother Ben Affleck's second wedding to wife Jennifer Lopez because he "fell asleep".

The Manchester by the Sea actor was due to head to Georgia for the three-day second wedding of Bennifer, but was spotted on Saturday morning (local time) buying coffee in Los Angeles instead.

TMZ caught Affleck's younger brother on camera coming out of a Starbucks on the day the event was kicking off, and asked him why he wasn't in attendance.

Affleck mumbled something before saying the words "fell asleep" as he got into his car and drove off.

Ben Affleck and Jennifer Lopez have already married in Las Vegas, but the pair had thrown a three day wedding event in Georgia, with a rehearsal dinner on Friday, before the event on Saturday.

Photos shared on fan sites on social media showed the pair both wearing white - along with many guests at the event.

It's also reported Affleck's mother Christine Anne Boldt had suffered a fall hours before the rehearsal dinner was due to start on Friday and had to be rushed to hospital for a severe cut to her leg.

Boldt needed stitches but was back at the event for the weekend celebrations - although she was believed to be in a wheelchair.

People reported Lopez wore a Ralph Lauren dress for the event, with Affleck matching her in a white tux. It also said the event was being photographed for a future spread in Vogue magazine.