ABC's "Lost" celebrated its 10th anniversary at the PaleyFest in Hollywood on Mar. 16. Many fan favorite characters showed up to the event like Josh Holloway (Sawyer), Daniel Dae Kim (Jin), Kim Yoon-Jin (Sun), Jorge Garcia (Hurley), Emilie de Ravin (Claire), Ian Somerhalder (Boone), Maggie Grace (Shannon), Nestor Carbonell (Richard), Henry Ian Cusick (Desmond) and Malcolm David Kelley (Walt).

The show's producers Damon Lindelof and Carlton Cuse were also in attendance. "Lost" followed the survivors of a commercial plane crash from Sydney to Los Angeles on a mysterious island. The show ran from 2004 to 2010 and ended with all the characters from the series reuniting in a church before they made their way towards Heaven.

Many fans were left confused by the ending and felt like the series finale left many questions unanswered. For instance was Kate, Sawyer, Jack and the rest of the cast dead the entire time? Was the island some type of purgatory?

At the event, Cuse and Lindelof played fans the first season finale and then answered some questions to try and clear things up. Here's what Cuse had to say about the "Lost" series finale (via Radio Times): 

Did the characters die in the plane crash and were they dead the entire time:

"No, no, no. They were not dead the whole time."

Why was there footage of the plane wreckage at the end of the series finale but no survivors:

"At the end of the series finale, ABC thought it would be good to have a buffer between when you have the end of the show and when they cut to say, a Clorox commercial. We didn't have a lot of extra footage lying around, but we had footage of the plane wreckage on the beach. We thought, let's put those shots at the end of the show and it will be a little buffer and lull. And when people saw the footage of the plane with no survivors, it exacerbated the problem."

Was the island a type of Purgatory:

"There was a very early perception that the island was a purgatory and we were always out there saying, 'It's not purgatory, this is real, we're not going to Sixth Sense you."

What does the series finale really mean:

By this point both producers confirmed that all the characters were dead when they met up at the church to go to Heaven.

"Very early on we had decided that even though 'Lost' is a show about people on the island, really, metaphorically, it was about people who were lost and searching for meaning and purpose in their lives. And because of that, we felt the ending really had to be spiritual, and one that talks about destiny. We would have long discourses about the nature of the show, for many years, and we decided it needed to mean something to us and our belief system and the characters and how all of us are here to lift each other up in our lives."

What do you think 'Lost' fans? Were you confused by the ending? Did this Q&A help you understand the series finale better?