Hanvey, who died on Monday at the age of 36 after a three-year battle with cancer, was given the chance to watch the film on Saturday, months before its December release, at St. Michael's Hospice in Herefordshire, England.
Hanvey's family started a social media movement in April, after he was given eight months to live, to get the word out about his final wish. The campaign picked up speed after numerous Star Wars icons joined in on the cause, tweeting with the hashtag "#RogueOneWish."
Hanvey's wife, Andrea, thanked everyone who participated in the campaign, sharing, "We would also like to thank the tens of thousands of people who supported the #RogueOneWish campaign.
"All the messages of love during the past week have given us a great deal of comfort during a very difficult time," she said in a statement to St. Michael's.
The hospice itself shared its thanks with "everyone who supported the #RogueOneWish campaign," in a message posted to Facebook.
"The director of Rogue One, Gareth Edwards, did all he could to make Saturday a very special day for Neil," the message continued. "Neil, his family and everyone at St Michael's Hospice would like to say thank you to Disney, Lucasfilm and especially Gareth Edwards."