Complex sentence: In the movie the Titans are portrayed as the underdogs, This is also untrue by the end of the 1971 season (including playoffs) the T.C. Williams Titans were 13-0 and ranked second in the nation.
Split into simpler sentences: In the movie the Titans are portrayed as the underdogs. However, by the end of the 1971 season (including playoffs), the T.C. Williams Titans were 13-0 and ranked second in the nation.