Matej Kodes broke the Czech Book of Records with the performance.
A Czech bubble artists surrounded 275 high school students and a car with a single soap-bubble on Wednesday, breaking the national record.
Matej Kodes raised the screen around a rectangular 11 metre-by-7.5 metre area, enclosing the students for a few seconds.
Participants had to be taller than 156 centimetres (5 ft 1 inch) to fulfil the conditions for the event, which was supervised by a representative from the Czech Book of Records.
Kodes, who has performed since 2008, achieved a Guinness World Record in 2014 for "most people inside a soap bubble", which at that time stood at 214.