Also on the low budget list Birth of a Nation was actually the movie with the highest budget up to that point and it was also the longest movie to that point at 190 minutes. I have no idea what the average price to produce a movie was in 1915 but I guess it was less then $40,000 which was the original budget for Birth of a Nation. As for movie length a lot of movies during that time where still less then a hour long especially comedies. D.W. Griffith's next movie Intolerance shattered that budget cost with a estimated budget of $385,907 but since the actual cost of the movie is unknown their are estimates that it costs close to $2 million dollars to make. Their are also no accurate numbers on how much Intolerance made but its considered to be the biggest bomb of the silent movie era. Last years The Artist is the silent movie with the biggest budget of $15 million but the silent movie with the biggest budget that was made and released in the silent movie era is the 1925 version of Ben-Hur which had a budget of $3,967,000.