"It has been hard for me ever since we wrapped a year ago - I was kind of left with this quite empty feeling after we finished and didn't really know what to do with myself, said Rupert Grint, who plays Ron Weasley in the films.

"For it to suddenly just end, it's very strange and it's going to take awhile I think for it to really sink in...I think these last few weeks have kind of brought it all back and it's really sad," he added.

When the film franchise began, the actors were between the ages of nine and 11 years old. Eleven years later, cast members feel they have come of age.

"It's kind of been like growing up on a fraternity or at a school or at an university, apart from we've just been doing something slightly different than most people. But it's been a great experience and I know I'm going to look back with only cherished memories and hopefully I've learned a lot and that will serve me well in life to come," said Felton.

Matthew Lewis nearly missed out on being a part of the film series after his mother tried to bribe him with fast food after sitting in the long audition line. Lewis says he doesn't even want to think about how he would feel if he would have left.

"My mother who, I guess will always have this thing now, she's tremendous supportive, you have to believe, you know, but I think that day she'd just had enough and she said 'do you want to go?' But I was determined and she said ok, we'll stay," Lewis told Reuters.

"Harry Potter and the Deathly Hallows Part 2" is the first out of the eight films to be in 3D. Director David Yates, who said this last film is his favorite out of the four he has directed took a different approach to using 3D.

"I used it kind of like you use music, when I got my movie together and I use music, sometimes we use it really loud exciting piece, sometimes we use a very quite piece. So it was always there to support story rather than for effect," Yates said.

In addition to all the memories, the cast were able to take with them a few mementoes.

"I was given a few things. The luminator, I did actually take the number off Privet Drive, Harry's house number," said Grint.

"I did get Darco's ring, he wears a slithering ring for the last six films for which I managed to - I asked them very kindly for that which they obliged which was nice," Felton told Reuters.

However Lewis feels like his keepsake doesn't measure up to the rest.

"I got false teeth, yeah, false teeth, which was rubbish, what am I to do with that? My parents have got them in this weird little shrine thing in the house, this little shelf with all "Harry Potter" artifacts on it and my false teeth are on display in there and I think that's disgusting," joked Lewis.

"Harry Potter and the Deathly Hallows Part 2" opens in U.S. theaters on July 15.