A teenage boy was pushed to the floor while watching a film at a Norfolk cinema.
The incident happened at the Majestic Cinema in King's Lynn on Friday, March 17.
The boy was grabbed and pushed to the floor as an evening screening came to an end, leaving him with a lump on his head and his mobile phone damaged.
The boy's friend was also threatened in the incident.
Police have released a CCTV image of a man they would like to speak to in connection with the incident.
Anyone who recognises the man or has information should contact PC Matthew Denyer at Norfolk Constabulary on 101 quoting crime reference number 36/19967/23 or via matthew.denyer@norfolk.police.uk.
Alternatively, witnesses can contact Crimestoppers anonymously on 0800 555 111.
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