"The response from people out there to what we're doing has been amazing," said Ben Loyd Holmes, who stars in The Expedition. "This kind of movie is normally left to big studios but we've approached it in a new and exciting way.
"We've been quite inventive, tried to do something really quite special… I cannot wait to bring the audience something that feels so real yet is just so magical."
To get autographs from most celebrities, an extra fee is charged on the day.
Other stars appearing at Birmingham Comic Con include:
• Richard Donat and Kate Kelton from popular sci-fi series Haven.
• Hannah Spearritt and Ben Mansfield from Primevil.
• Television and film writer Bob Baker, who has written scripts for Wallace & Gromit films and Doctor Who between 1971 and 1979.
• Patricia Quinn, best known for her role as Magenta in the film The Rocky Horror Picture Show. Other credits include I, Claudius; Monty Python's The Meaning of Life, Doctor Who and Rob Zombie's The Lords of Salem.
• Roger Lloyd-Pack, best known as Trigger on Only Fools And Horses;
• Benidorm stars Sherrie Hewson, Jake Canuso and Janine Duvitski.
• Carry On favourites Fenella Fielding and Jacki Piper.
MCM Birmingham Comic Con & Memorabilia Show
Birmingham NEC - November 23 - 24
Tickets cost £5 for children. £10 - £16 adults. For more details visit the MCM website