This is a rather unique mission in the fact that there’s no button presses you need to time or shootouts you need to navigate. This is a purely story based mission which sets the tone for Abigail and John however there is a (very easy) Gold Medal to obtain here and for that fact, you’ll need to skip every cutscene. For that reason alone, it is strongly recommended that you play this mission normally and then skip the cutscenes on a replay.
After beginning the mission, walk over to the wagon and then gallop as fast as possible to Blackwater, not stopping for anything. Once you reach Blackwater, bring the wagon to a stop outside the photo studio and get out. Quickly head in and when given the opportunity, choose the first backdrop along with the first pose to speed up the process.
Once you leave the photo studio, begin heading across the road to the theater before Abigail brings the suggestion up, you can then enter as soon as the marker appears. Buy your tickets and watch the movie in full, skipping the next cutscene after. Once again, preemptively begin walking to the southeast, towards the river and the marker will appear once again. Once on the boat, row as fast as possible to the designated area and when given the option, ask the all important question. Upon skipping the next cutscene the mission will conclude and you’ll obtain another easy Gold Medal.