CROWDS of comic book lovers and celebrity spotters continue to gather in Durham today as speculation mounts that Hollywood superstar Samuel L Jackson is in town.

Rumours are rife on social media that the actor will be at Durham Cathedral to for the filming of Avengers: Infinity War - the latest in the Marvel franchise.

Action inside the cathedral has remained top secret since filming began last Thursday.

Thor actor Chris Hemsworth has already been spotted out and about in Durham City, with several selfies posted on Facebook and Twitter.

The film, due to be released in 2018, has an all-star cast which also includes Benedict Cumberbatch, Tom Hiddleston, Scarlett Johansson, Robert Downey Jr, Chris Pratt and Zoe Saldana