In pictures: Opening day of the 25th Star Wars Convention

Fans, many dressed in costume, attended the opening day of the 25th Star Wars Convention on April 16, 2015, in Anaheim, California.

The four-day event comprises a series of panels, autograph sessions and exhibitions related to the Star Wars franchise.

It is expected to see more 150,000 fans from around the world.

Here's a look at the event in pictures:

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