The church has always told in an apologetic way of how the first Christians were martyred in the colosseum: torn to pieces by lions under the eyes of the emperor and the Roman public, even the cinema over the years has handed down this story as for example in the film "quo vadis" , however, the most recent historians are disproving this thesis ... To date, what can be said about this story?
Not to discourage further answers, but a similar question was asked and answered by u/MarcusDohrelius and u/jasoncaspian. Hope this helps!