In the 2003 Colin Bryce documentary 'The World's Strongest Arms', together with fellow World's Strongest Man champion Svend Karlsen, Samuelsson demonstrated world class feats of strength such as performing bicep curls with 140 kg (309 lb) for 4 repetitions, bench pressing 270 kg (595 lb) for 2 repetitions, unofficially surpassing Andrus Murumets 121.1 kg (267 lb) Rolling Thunder world record, three times with lifts of 123.9 kg (273.2 lb), 126.1 kg (278.0 lb) and 129.6 kg (285.7 lb) and unofficially becoming the first and only man in history to close the Captains of Crush No. 4 gripper for two reps. The following year, Samuelsson officially closed the legendary gripper under official conditions and to this date remains the fifth and the final man to close it under official conditions.