Serious in example sentence
It is interesting that a number of films set during the 1900s and early 1910s, both comedies such as 'The Assassination Bureau' and serious dramas such as 'The Riddle of the Sands' and the Robert Powell version of 'The 39 Steps', focus on diplomatic attempts to prevent the outbreak of a European war, even though we know that in real life such attempts were to end in failure.