Serenity

According to Nathan Fillion, he personally supplied the blueprints used to build the ship set in the film after being informed at a production meeting that the originals had been lost. He was able to do so because, being so excited about being in the original show, he had taken photos of ALL the preproduction materials he had seen, including the blueprints.

Security camera footage shows Mal and Jayne sitting at a table with Fanty and Mingo before they enter the bar.

There is a message in the closing credits: "The filmmakers wish to thank the crew and staff of 'Firefly'"

Featured in Siskel & Ebert: Into the Blue/Serenity/The Greatest Game Ever Played/Mirrormask/Capote/The Prizewinner of Defiance, Ohio (2005)