Daniel Radcliffe unsure about reuniting with 'Harry Potter' co-stars on 20th anniversary

The actor is sure there would be some celebration to mark the milestone in November, but adds that his work schedule would probably bar him from getting together with franchise co-stars Rupert Grint and Emma Watson, who played Ron Weasley and Hermione Granger respectively, reports aceshowbiz.com. 

"I'm in the Dominican Republic at the moment, filming, and then I'm going to be busy, kind of working on bits and pieces until the end of the year. So, yeah, I don't know. I'm sure there will be some sort of celebration but I don't know if we will be getting together or anything. I'm sorry if that's a bit of a disappointment to anyone," Radcliffe told Entertainment Tonight. 

The actor says he has not seen any of the eight "Harry Potter" films, released between 2001 and 2011, he has occasionally caught glimpses while watching TV. 

"I've seen bits on TV for seconds before I go, 'Uh!' Or if it's a scene that someone else is in I'll go, 'Oh, cool'," he said. 

Radcliffe has particularly fond memories of filming with Gary Oldman and David Thewlis, who played Sirius Black and Professor Remus Lupin respectively. 

"I have really, really fond memories of all my scenes with Gary Oldman and David Thewlis," he said.