Movie buff Chris Kerr, 30, left his bike in the Regent Cinema foyer on Sunday morning while he went and watched the new Teenage Mutant Ninja Turtles movie.

But to his disappointment, when he went downstairs after the movie he realised his only mode of transport had been stolen.

Chris, a regular movie goer who has Down syndrome, had left his bike in the same spot for the past 10 to 15 years with no issues.

Chris’ dad Harry said his son had saved up for the $700 bike five years ago and rode it almost every day.

“He relies on his bike very much, it is his independence and for someone to take that away is a very low act,” Harry said.

“I’m a bit lost for words— he was just devastated when he found out.”

The Giant brand bike is blue, silver and white in colour and has a basket on the front.

Chris and his dad reported the theft to police on the day who have checked CCTV footage.

Harry said they are hoping a good samaritan might hand the bike in.

“People have been very supportive on Facebook and have commented on how much Chris relies on his bike,” Harry said.

“It is a lesson learnt and a message for all bike riders to make sure they lock their bikes.”