A Czech performer of bubble art surrounded 275 high school students and a car with a single soap-bubble screen on Wednesday, breaking the national record.
Matej Kodes raised the screen around a rectangular 11 metre-by-7.5 meter area, enclosing those inside for a few seconds.
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Participants had to be taller than 156 centimeters (5 ft 1 inch) to fulfill the conditions for the event, which was supervised by a representative from the Czech Book of Records, who declared it a new record.
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.
(Reporting by Reuters Television; Editing by Hugh Lawson)